Definition of def

 (Entry 1 of 3)

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

def

adverb
\ ˈdef How to pronounce def (audio) \

Definition of def (Entry 2 of 3)

slang
: definitely Oh, I'll def be there! If the Ed Westwick tidbit wasn't enough to get you up to the roof, the luxurious pool def will.— Katie Buckleitner

def

adjective
deffer; deffest

Definition of def (Entry 3 of 3)

slang
: cool sense 7 … but just about everything else you need is supplied in Rap Trax, a do-it-yourself kit of def beats and prime rhythms.— Shann Dix

Synonyms & Antonyms for def

Synonyms: Adjective

Antonyms: Adjective

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Examples of def in a Sentence

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

First Known Use of def

Adverb

circa 1942, in the meaning defined above

Adjective

1979, in the meaning defined above

History and Etymology for def

Adverb

short for definitely

Adjective

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

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Statistics for def

Last Updated

23 Aug 2022

Cite this Entry

“Def.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/def. Accessed 6 Oct. 2022.

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More Definitions for def

def

abbreviation

Medical Definition of def

1 defecation
2 deficient
3 definite

def.

abbreviation

Legal Definition of def.

defendant

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