About 144,000 results
Open links in new tab
  1. DEF Definition & Meaning - Merriam-Webster

    What does the abbreviation DEF stand for? Meaning: defendant; defense. How to use def in a sentence.

  2. def - Wiktionary, the free dictionary

    Nov 17, 2025 · Failing to see the word's antecedents, I suspected that def was either bogus or an orphan, lost to its slang ancestors through mispronunciation or misspelling […]

  3. 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.

  4. DEF | definition in the Cambridge English Dictionary

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

  5. Def - definition of def by The Free Dictionary

    def Also found in: Thesaurus, Medical, Legal, Financial, Acronyms, Idioms, Encyclopedia, Wikipedia.

  6. DEF Definition & Meaning | Dictionary.com

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

  7. DEFINITION Definition & Meaning | Dictionary.com

    DEFINITION definition: the act of defining, or of making something definite, distinct, or clear. See examples of definition used in a sentence.

  8. Meanings & Definitions of English Words | Dictionary.com

    2 days ago · The world's leading online dictionary: English definitions, synonyms, word origins, example sentences, word games, and more. A trusted authority for 25+ years!

  9. Merriam-Webster: America's Most Trusted Dictionary

    Find definitions for over 300,000 words from the most authoritative English dictionary. Continuously updated with new words and meanings.

  10. Where to Find DEF at the Pump: Map and List of Stations

    DEF stands for diesel exhaust fluid. It's a non-toxic, colorless, and odorless liquid used in modern diesel engines equipped with selective catalytic reduction (SCR) systems to reduce harmful …