prefix

noun verb

Stress: first syllable

Syllables: pre-fix (2)
English Definition

A word, letter, or number placed before another.

Example Sentence

In the word 'unhappy', 'un' is a prefix.

US IPA /ˈpriːfɪks/
UK IPA /ˈpriːfɪks/

Synonyms

affix adjunct addition prefixation

Antonyms

suffix postfix