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  1. DEF Definition & Meaning - Merriam-Webster

    Feb 24, 2026 · The meaning of DEF is definitely. How to use def in a sentence.

  2. def - Wiktionary, the free dictionary

    Jun 14, 2026 · Russell Simmons, a founder of the company [Def Jam Recordings], said that his partner, in designing the logo for the company’s record label, may have been the first to set def down in …

  3. DEF | definition in the Cambridge English Dictionary

    DEF meaning: 1. very good: 2. very good: . Learn more.

  4. DEF definition and meaning | Collins English Dictionary

    8 meanings: slang very good, esp of hip-hop definition → 1. a formal and concise statement of the meaning of a word, phrase,.... Click for more definitions.

  5. What Does 'Def' Mean? A Deep Dive into Its Origins and Usage

    Let’s dive in! The origins of ‘def’ and its evolution The term ‘def’ traces back to the 1980s, primarily emerging from hip-hop culture. Initially a slang abbreviation for “definite,” it quickly evolved into a …

  6. def noun - Definition, pictures, pronunciation and usage notes | Oxford ...

    Definition of def noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

  7. Def - definition of def by The Free Dictionary

    Define def. def synonyms, def pronunciation, def translation, English dictionary definition of def. cool Abused, Confused, & Misused Words by Mary Embree Copyright ...

  8. What does def mean? - Definitions.net

    Definition of def in the Definitions.net dictionary. Meaning of def. What does def mean? Information and translations of def in the most comprehensive dictionary definitions resource on the web.

  9. def - WordReference.com Dictionary of English

    def - WordReference English dictionary, questions, discussion and forums. All Free.

  10. DEF Definition & Meaning | Dictionary.com

    DEF definition: definitely. See examples of def used in a sentence.