The letter S is one of the most frequently used letters at the end of English words. It appears in plural nouns, verb forms, possessive constructions, and many naturally occurring words. Understanding words that end with S can improve vocabulary, spelling, reading, and writing skills. In this guide, you will learn the meaning of S-ending words, grammar rules, examples, special cases, and related word patterns.
Table of Contents

What are Words that End with S?
Words that end with S are words whose final letter is the alphabet S. These words can be nouns, verbs, adjectives, or proper nouns. This includes:
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Plural nouns, such as books, chairs, and pencils
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Singular nouns that naturally end in S, such as bus, gas, and lens
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Verbs in the present tense (third person singular form), such as runs, plays, and jumps
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Words where S is simply part of the root spelling, such as always, glass, and yes
Why Do Words End With S?
There are several reasons why English words end with S.
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To show plural nouns: Adding S often indicates more than one person, place, animal, or object. Examples:
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Apple → apples
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river → rivers
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student → students
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To form third-person singular verbs: In the simple present tense, verbs often take S when used with he, she, or it. Examples:
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write → writes
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sing → sings
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Jump → jumps
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Teacher's notebook
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child's project
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artist's sketch
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atlas
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cactus
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lens
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chorus
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oasis
List of Words that End with S
Here is a list of words that end with s
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As
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Is
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Us
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Was
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His
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Has
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Its
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Yes
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Gas
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Bus
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This
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Moss
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Does
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Days
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Less
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Loss
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News
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Toss
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Mass
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Thus
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Plus
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Pass
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Miss
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Boss
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Ours
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Mess
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Bias
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Bass
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Axis
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Hers
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Lens
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Times
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Chaos
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Press
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Glottis
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Pious
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Sinus
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Basis
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Focus
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Cross
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Fries
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Glass
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Gross
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Chess
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Bless
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Gloss
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Virus
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Minus
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Oasis
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Bliss
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Maths
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Bonus
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Tongs
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Across
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Theirs
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Series
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Access
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Always
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Circus
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Status
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Unless
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Famous
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Crisis
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Joyous
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Chorus
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Excess
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Stress
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Lights
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Tennis
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Citrus
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Campus
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Genius
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Thesis
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Canvas
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Recess
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Process
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Posses
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Confess
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Various
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Curious
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Success
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Endless
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Actress
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Perhaps
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Address
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Remains
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Harness
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Discuss
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Serious
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Dismiss
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Express
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Furious
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Obvious
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Species
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Impetus
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Whereas
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Madness
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Chassis
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Illness
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Nervous
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Surplus
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Fitness
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Dubious
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Tedious
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Hostess
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Physics
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Jobless
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Surpass
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Indices
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Tactics
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Business
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Analysis
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Restless
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Previous
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Ruthless
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Emphasis
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Numerous
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Goodness
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Mattress
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Nowadays
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Glorious
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Enormous
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Sickness
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Spacious
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Timeless
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Overseas
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Wireless
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Gorgeous
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Highness
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Precious
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Kindness
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Weakness
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Terminus
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Princess
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Sideways
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Humorous
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Cautious
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Diabetes
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Crackers
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Seamless
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Sometimes
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Unanimous
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Athletics
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Momentous
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Sleepless
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Tenacious
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Thesaurus
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Conscious
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Diagnosis
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Ambitious
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Semantics
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Paralysis
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Priceless
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Anonymous
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Boundless
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Logistics
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Delicious
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Thickness
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Apparatus
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Limitless
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Courageous
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Statistics
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Tremendous
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Continuous
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Victorious
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Mysterious
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Yourselves
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Hypothesis
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Meticulous
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Prospectus
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Gymnastics
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Miraculous
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Autonomous
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Indigenous
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Wilderness
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Ubiquitous
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Prosperous
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Rendezvous
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Relentless
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Amphibious
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Electronics
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Superfluous
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Prestigious
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Pretentious
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Meaningless
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Spontaneous
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Forgiveness
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Adventurous
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Linguistics
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Illustrious
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Shenanigans
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Aeronautics
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Cybernetics
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Mischievous
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Parenthesis
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Headquarters
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Nevertheless
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Aerodynamics
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Tuberculosis
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Therapeutics
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Subconscious
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Presumptuous
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Inauspicious
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Cantankerous
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Astrophysics
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Heterogeneous
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Miscellaneous
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Metamorphosis
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Discontinuous
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Superstitious
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Psychoanalysis
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Photosynthesis
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Farsightedness
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Thermodynamics
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Microeconomics
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Expressionless
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Electrostatics
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Conjunctivitis
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Immunogenetics
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Disadvantageous
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Characteristics
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Metalinguistics
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Electrodialysis
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Electrokinetics
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Common Words Ending with S
Here are some common words that end with S along with their meaning and example in sentence.
Three-Letter Words that End with S
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Word
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Meaning
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Example Sentence
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bus
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a large road vehicle that carries many passengers
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We waited at the stop for the bus.
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gas
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a substance in a form that is neither solid nor liquid, often used as fuel
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The car ran out of gas.
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yes
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a word used to agree or give a positive answer
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She nodded and said yes.
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his
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belonging to a male person or animal
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This bag is his.
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its
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belonging to a thing or animal already mentioned
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The dog wagged its tail.
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pus
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a thick yellowish fluid produced in an infected wound
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The wound had pus around it.
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nos
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plural short form of "no", used to mean multiple refusals
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The survey collected mostly nos from the group.
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ads
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short form of advertisements
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The website had too many ads on one page.
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Four-Letter Words Ending in S
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Word
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Meaning
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Example Sentence
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bass
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a low, deep sound or tone, also a type of fish or guitar
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He plays the bass in a band.
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lens
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a curved piece of glass or plastic used to focus light
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The camera lens was cracked.
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mass
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a large amount or body of matter
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The mass of the rock was measured.
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pass
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to move something from one person or place to another, or to succeed in a test
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Please pass the salt.
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bits
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small pieces or fragments of something
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The bits of paper flew everywhere.
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cats
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plural of cat, a small domesticated animal
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The cats slept on the porch.
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ants
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plural of ant, a small insect that lives in colonies
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The ants carried crumbs to their nest.
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Five-Letter Words Ending in S
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Word
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Meaning
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Example Sentence
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glass
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a hard, transparent material, or a container made from it
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The glass of water spilled.
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grass
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short green plants that cover fields and lawns
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The grass needs cutting.
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dress
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a one piece garment worn typically by women and girls
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She wore a blue dress.
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press
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the news media, or the act of pushing something firmly
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The press covered the event.
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chess
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a strategy board game played between two players
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They played chess after dinner.
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stars
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plural of star, a bright object in the night sky
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The stars were bright that night.
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trees
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plural of tree, a tall plant with a trunk and branches
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The trees swayed in the wind.
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Longer Words that End with S
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Word
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Meaning
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Example Sentence
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flames
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the visible, burning parts of a fire
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The flames spread quickly through the dry grass.
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lights
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sources of illumination, or plural of light
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The city lights sparkled below the plane.
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birds
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plural of bird, a warm blooded animal with feathers and wings
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The birds gathered on the wire.
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planes
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plural of plane, an aircraft with fixed wings
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Two planes crossed paths in the sky.
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makers
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people or companies that produce or create something
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Local makers sold handmade goods at the fair.
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ladders
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structures with rungs used for climbing up or down
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The workers climbed tall ladders.
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problems
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matters or situations that are difficult to deal with
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The team solved several difficult problems.
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students
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people who are studying at a school or college
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The students submitted their assignments on time.
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memories
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things remembered from the past
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The old photographs brought back happy memories.
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journeys
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trips or acts of travelling from one place to another
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Long journeys often teach valuable lessons.
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holidays
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days of festivity or rest from work and school
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Families travel during the summer holidays.
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suspicious
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having or showing a feeling that something is wrong or dishonest
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His suspicious behaviour worried the neighbours.
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generous
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willing to give more of something, such as time or money, than is expected
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She is known for being generous with her time.
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communications
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methods or systems used for sending and receiving information
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The company improved its internal communications.
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circumstances
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the conditions or facts connected with an event or situation
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Under difficult circumstances, she stayed calm.
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relationships
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the ways in which two or more people or things are connected
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Strong relationships are built on trust.
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accomplishments
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things successfully achieved through effort or skill
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The award ceremony celebrated their accomplishments.
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responsibilities
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duties or tasks that a person is expected to deal with
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Adults often juggle many responsibilities.
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Rare English Words that End with S
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Word
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Meaning
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abyss
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A very deep or seemingly bottomless space
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ibis
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A long-legged wading bird
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nexus
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A connection or link
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aegis
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Protection or support
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praxis
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Practical application of knowledge
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chrysalis
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The stage before a butterfly emerges
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trellis
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A framework used to support climbing plants
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amanuensis
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A person who writes or types for another
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cannabis
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A flowering plant genus
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impetus
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A force that encourages action
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Usage of S Ending Words in Sentences
Here are examples showing how words ending with S are used correctly.
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Category
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Word Ending in S
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Example Sentence
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Plural Noun
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Scientists
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Gardens
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Visitors
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Several scientists attended the conference.
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The gardens looked beautiful after the rain.
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Many visitors explored the museum during the holiday.
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Verb (Third-Person Singular)
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Teaches
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Collects
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Observes
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She teaches mathematics every day.
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He collects historical maps.
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The researcher observes changes carefully.
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Singular Word Naturally Ending in S
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The oasis provided relief during the journey.
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The university campus covers a large area.
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The camera lens captured a sharp image.
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Rules and Tips for Adding S at the End
When forming plurals or present tense verbs, keep these tips in mind:
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Add S for most words: Book becomes books, walk becomes walks.
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Add ES after certain endings: Words ending in ch, sh, ss, x, or z usually take ES instead of just S, for example box becomes boxes and church becomes churches.
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Change Y to IES: If a word ends in a consonant followed by Y, change the Y to I and add ES, for example baby becomes babies.
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Keep Y and add S: If the word ends in a vowel followed by Y, simply add S, for example toy becomes toys.
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Watch for irregular plurals: Some words do not follow the standard S rule at all, such as child becoming children or mouse becoming mice.
Apostrophes With Words and Names Ending in S
Apostrophes can be tricky with words and names that already end in S. Here is a simple breakdown:
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Singular noun ending in S: Add an apostrophe and another S, for example the bus's engine, or James's book. Some style guides accept just an apostrophe after the S for names, such as James' book, so both forms may be seen depending on the guide being followed.
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Plural noun ending in S: Add only an apostrophe after the S, for example the students' classroom, meaning a classroom belonging to more than one student.
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Plural noun not ending in S: Add an apostrophe and an S, for example the children's toys.