af·fix | \ ə-ˈfiks , a- \
affixed; affixing; affixes

Definition of affix 

(Entry 1 of 2)

transitive verb

1 : to attach physically affix a stamp to a letter

2 : to attach in any way : add, append affix a signature to a document

3 : impress affixed my seal


af·fix | \ ˈa-ˌfiks \

Definition of affix (Entry 2 of 2)

1 grammar : one or more sounds or letters occurring as a bound form attached to the beginning or end of a word, base, or phrase or inserted within a word or base and serving to produce a derivative word or an inflectional form The affix in the word "attendance" is "-ance."

2 : appendage

Keep scrolling for more

Other words from affix


affixable \-ˈfik-sə-bəl \ adjective
affixation \ˌa-ˌfik-ˈsā-shən \ noun
affixment \ə-ˈfik-smənt, a- \ noun


affixal \-ˌfik-səl \ or affixial \a-ˈfik-sē-əl \ adjective

Synonyms & Antonyms for affix

Synonyms: Verb

attach, bend, fasten, fix

Antonyms: Verb

detach, undo, unfasten, unhook

Visit the Thesaurus for More 

Choose the Right Synonym for affix


fasten, fix, attach, affix mean to make something stay firmly in place. fasten implies an action such as tying, buttoning, nailing, locking, or otherwise securing. fasten the reins to a post fix usually implies a driving in, implanting, or embedding. fixed the stake in the ground attach suggests a connecting or uniting by a bond, link, or tie in order to keep things together. attach the W-2 form here affix implies an imposing of one thing on another by gluing, impressing, or nailing. affix your address label here

Examples of affix in a Sentence


affix a first-class stamp to the envelope

Recent Examples on the Web: Verb

Most noticeable were the pops of neon orange and yellow that affixed the event’s custom merchandise. Spencer Kornhaber, The Atlantic, "Kanye West’s Ye Sparks and Sputters," 1 June 2018 Construction crews affixed Whole Food Market's trademark green signage to its Stonewall Street facade this month. Ely Portillo, charlotteobserver, "Why a major Charlotte developer is selling itself to a Japanese forestry company," 28 Apr. 2018 After days in which the administration had not fully affixed blame over the incident, U.N. Ambassador Nikki Haley blasted Russia during a Security Council session Wednesday. Washington Post, "New Russia sanctions are Trump’s strongest action against Moscow — but far short of what Congress wanted," 15 Mar. 2018 Unlike traditional highlighters, face glosses don't have the same luxury of being able to be affixed to skin all day long with setting spray. Devon Abelman, Allure, "How to Use Face Gloss, the Dewiest and Most Underrated Highlighting Product Ever," 14 Mar. 2018 Each fish wore a colored tag affixed to its back near the dorsal fin, which allowed the researchers to identify each individual fish. Jonathan Balcombe, Scientific American, "Fishes Use Problem-Solving and Invent Tools," 1 May 2017 To attract deer, hunters will sometimes cut off the bottom of a peanut butter jar and affix it to the side of a tree trunk. Jordan Cutler-tietjen, sacbee, "Doe in distress: Auburn deer can't eat because of peanut butter jar, resident says," 10 July 2018 After two years of trying to crack the major-league roster, Kemp has affixed himself to since being was recalled from class AAA Fresno on May 16. Hunter Atkins, Houston Chronicle, "Astros' Tony Kemp embracing new role," 9 July 2018 Whatever worries may have affixed themselves to Clemens ahead of this year have been laid to rest. Nick Moyle, San Antonio Express-News, "Youngest son of Roger Clemens distinguishing himself for Longhorns," 10 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'affix.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of affix


14th century, in the meaning defined at sense 1


1600, in the meaning defined at sense 1

History and Etymology for affix


borrowed from Latin affīxus, past participle of affīgere "to fasten (to), attach," from ad- ad- + fīgere "to drive in, insert" — more at fix entry 1


borrowed from Middle French affixe "notice, placard, element added to the base or stem of a word (originally in Hebrew grammar)," borrowed from Latin affīxus, past participle of affīgere "to fasten (to), attach" — more at affix entry 1

Keep scrolling for more

Learn More about affix

Statistics for affix

Last Updated

19 Sep 2018

Look-up Popularity

Time Traveler for affix

The first known use of affix was in the 14th century

See more words from the same century

Keep scrolling for more

More Definitions for affix



English Language Learners Definition of affix

 (Entry 1 of 2)

: to attach (something) to something else



English Language Learners Definition of affix (Entry 2 of 2)

grammar : a letter or group of letters added to the beginning or end of a word to change its meaning : a prefix or suffix


af·fix | \ ə-ˈfiks \
affixed; affixing

Kids Definition of affix

 (Entry 1 of 2)

1 : to attach firmly Affix the stamp to the envelope.

2 : to add to something else He affixed his signature to the letter.


af·fix | \ ˈa-ˌfiks \

Kids Definition of affix (Entry 2 of 2)

: a letter or group of letters (as a prefix or suffix) that comes at the beginning or end of a word and has a meaning of its own

af·fix | \ ə-ˈfiks, a- \

Legal Definition of affix 

1 : to attach physically

2 : to attach or add in any way affix a signature to a document

3 : to make by or as if by pressure affix my seal

Keep scrolling for more

Comments on affix

What made you want to look up affix? Please tell us where you read or heard it (including the quote, if possible).


to make amends

Get Word of the Day daily email!

Test Your Vocabulary

Musical Words Quiz

  • gramophone
  • Which word describes a musical performance marked by the absence of instrumental accompaniment?
True or False

Test your knowledge - and maybe learn something along the way.


Test Your Knowledge - and learn some interesting things along the way.


Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!