Suffixes are groups of letters added to the end of a base word. They help you form new words and often change the word’s meaning, part of speech (such as turning a noun into an adjective), or grammatical function (such as changing a verb to past tense).

How suffixes work

  • You start with a base word (like help).
  • You add a suffix (like -ful) to form a new word (helpful).
  • The new word may have a different meaning or grammatical role.
  • Suffixes can be used to create nouns, verbs, adjectives, or adverbs.
  • Some suffixes (like -ed or -ing) change verb tenses.
Examples
Base WordSuffixNew WordMeaning / Function
help-fulhelpfulfull of help (adjective)
quick-lyquicklyin a quick manner (adverb)
teach-erteacherone who teaches (noun)
use-lessuselesswithout use (adjective)
move-mentmovementthe act of moving (noun)

Types of suffixes

Suffixes are grouped by the kind of word they create:
  • Noun suffixes: create nouns (people, things, concepts)
  • Verb suffixes: create verbs or change verb forms
  • Adjective suffixes: create adjectives (describe nouns)
  • Adverb suffixes: create adverbs (describe verbs, adjectives, or other adverbs)

Common suffixes

Here are some of the most common English suffixes, along with examples:

Noun suffixes

These suffixes form nouns, which can be people, things, or abstract ideas.
SuffixExampleMeaningExample Sentence
-er / -orteacher, actora person who does somethingThe teacher explained the lesson.
-tion / -sionaction, missionthe act or process of somethingThe mission is complete.
-mentmovement, agreementthe result or process of somethingThey made an agreement.
-nesshappiness, darknessa state or qualityHappiness is important.
-ityactivity, realitya quality or conditionThe reality is surprising.
-hoodchildhood, neighborhooda state or period of lifeI miss my childhood.
-shipfriendship, leadershipthe state of beingTheir friendship is strong.
-istartist, scientista person who practices or is concerned with somethingThe artist painted a portrait.

Which suffix means 'a state or quality'?


-ness

The suffix -ness creates nouns that describe a state or quality, such as happiness or darkness.

Verb suffixes

These suffixes form verbs or change verb tenses and aspects.
SuffixExampleMeaningExample Sentence
-ize / -iserealize, organiseto make or becomeI realize my mistake.
-enshorten, brightento become or makeShorten the paragraph.
-ifysimplify, justifyto make or causePlease simplify the problem.
-edwalked, jumpedpast tenseShe jumped high.
-ingwalking, singingpresent participle / gerundI am singing now.

Adjective suffixes

These suffixes form adjectives, which describe nouns.
SuffixExampleMeaningExample Sentence
-fuljoyful, carefulfull ofShe is joyful today.
-lesshopeless, carelesswithoutDon’t be careless.
-ousdangerous, famousfull of, havingThe tiger is dangerous.
-able / -iblereadable, visiblecapable ofThe text is readable.
-icartistic, scientificrelating toShe has an artistic talent.
-ivecreative, talkativetending toHe is very talkative.

Adverb suffixes

These suffixes form adverbs, which usually describe verbs, adjectives, or other adverbs.
SuffixExampleMeaningExample Sentence
-lyquickly, happilyin a … mannerShe runs quickly.
-ward / -wardsforward, backwardsin the direction ofMove forward slowly.
-wiseclockwise, otherwisein the manner ofTurn clockwise.

What suffix means 'in the direction of'?


-ward / -wards

The suffix -ward or -wards indicates direction, as in forward or backwards.

Rules for adding suffixes

Some suffixes require spelling changes to the base word:
  1. If the base word ends in e, drop the e before adding a suffix that begins with a vowel:
    1. makemaking
    2. hopehopeful
  2. If the base word ends with a consonant + y, change the y to i before adding a suffix (except for -ing):
    1. happyhappiness
    2. trytried
  3. For short words with a single final consonant, double the consonant before adding -ed or -ing:
    1. stopstopped, stopping
    2. runrunning

Common mistakes

  • Don’t add suffixes to words that already have them (e.g., beautifull is wrong; correct: beautiful).
  • Spelling rules must be followed (e.g., write happiness, not happyness).
  • Some suffixes change meaning more than form (e.g., useful vs. useless have opposite meanings).

Which of these is a correct word?


beautiful

The correct adjective is beautiful with one l. Doubling suffixes incorrectly (beautifull) is a common mistake.

Summary

  1. Suffixes create new words by adding endings to base words.
  2. They can form nouns, verbs, adjectives, and adverbs.
  3. Common suffixes include -er, -tion, -ed, -ing, -ful, -less, -ly.
  4. Spelling rules help you add suffixes correctly.
  5. Practice helps you internalize patterns and meanings.
Suffixes help you expand your vocabulary and express ideas more precisely. You can use suffixes to form new words, change word categories, and convey different meanings. This makes your English more flexible and accurate.

Last updated: Wed Jun 18, 2025

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