Definition of “affix” - English Dictionary

“affix” in British English

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affixverb [ T ]

uk /əˈfɪks/ us /əˈfɪks/ formal

affixnoun [ C ]

uk /ˈæf.ɪks/ us /ˈæf.ɪks/

a letter or group of letters added to the beginning or end of a word to make a new word:

The affixes un- and -less are often used to make negative words, such as "unhappy" and "careless".

(Definition of “affix” from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

“affix” in American English

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affixverb [ T ]

us /əˈfɪks, æ-/ fml

to attach, add, or join one thing to another:

The sticker must be affixed to your windshield.

affixnoun [ C ]

/ˈæf·ɪks/

grammar a letter or letters added at the beginning or end of a word to make a new word

(Definition of “affix” from the Cambridge Academic Content Dictionary © Cambridge University Press)