def

adjective
\ ˈdef How to pronounce def (audio) \
deffer; deffest

Definition of def

 (Entry 1 of 2)

slang

Definition of def (Entry 2 of 2)

1 defendant; defense
2 deferred
3 defined; definition
4 definite

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Synonyms & Antonyms for def

Synonyms: Adjective

au courant, cool [slang], downtown, groovy, hep, hip, in, mod, now, trendy, turned-on, with-it

Antonyms: Adjective

out, uncool, unhip, untrendy

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Examples of def in a Sentence

Adjective

of the rappers on the scene, he was definitely the most def

Recent Examples on the Web: Adjective

The worst part about all of this is def the lyrics, though. Carolyn Twersky, Seventeen, "Noah Cyrus and Lil Xan's New Music Video Just Leaked and It’s Painfully Awkward To Watch," 17 Sep. 2018

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

First Known Use of def

Adjective

1979, in the meaning defined above

History and Etymology for def

Adjective

probably alteration of death (from the phrase to death excessively)

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Statistics for def

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Time Traveler for def

The first known use of def was in 1979

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More Definitions for def

Medical Definition of def

1 defecation
2 deficient
3 definite

Legal Definition of def.

defendant

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Thesaurus: All synonyms and antonyms for def

Comments on def

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likely to have or produce good results

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