affix

verb

af·​fix ə-ˈfiks 

a-

affixed; affixing; affixes

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

affixable

ə-ˈfik-sə-bəl 

a-

adjective

affixation

ˌa-ˌfik-ˈsā-shən 

noun

affixment

ə-ˈfik-smənt 

a-

noun

Synonyms of affix

• attach

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

Another document details exactly how to create a Patriot Front banner – down to how to tie the knots affixing the canvas. —Will Carless, USA Today, 4 June 2026

Ever since Italian visual artist Maurizio Cattelan first made a splash at Art Basel Miami Beach 2019 with the artwork Comedian, 2019, which consists of a banana affixed to a gallery wall with a single piece of duct-tape (in an edition of three). —News Desk, Artforum, 1 June 2026

Put your return address in the upper lefthand corner, and affix a stamp on the upper righthand corner. —Marla Jo Fisher, Oc Register, 20 May 2026

In addition to the oodles of diamonds, emeralds and sapphires adorning everyone's hands and wrists, some celebrities went for even more sparkle, affixing delicate stones to their eyes, cheeks and nose. —Alex Apatoff, PEOPLE, 6 May 2026

Word History

Etymology

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

First Known Use

14th century, in the meaning defined at sense 1

Rhymes for affix

• graphics
• traffics
• demographics
• micrographics

Kids Definition

affix

1 of 2 verb

af·​fix ə-ˈfiks 

a-

1

: to attach physically : fasten

affix a stamp to a letter

2

: to attach in any way : add

affix a signature to a document

affix

2 of 2 noun

af·​fix ˈaf-ˌiks 

: a letter or a group of letters attached to the beginning or end of a word that serves to produce a derivative word or an inflectional form

Legal Definition

affix

transitive verb

af·​fix ə-ˈfiks, a- 

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