About 170,000 results
Open links in new tab
  1. Diesel exhaust fluid - Wikipedia

    Passenger car using an AdBlue pump Diesel exhaust fluid (DEF; also known as AUS 32 and sometimes marketed as AdBlue[3]) is a …

  2. DEF Definition & Meaning - Merriam-Webster

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

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

    1 day ago · The world's leading online dictionary: English definitions, synonyms, word origins, example sentences, word games, and …

  4. DEF | English meaning - Cambridge Dictionary

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

  5. DEF | definition in the Cambridge English Dictionary

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

  6. 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 …

  7. DEFINITION Definition & Meaning - Merriam-Webster

    The meaning of DEFINITION is a statement of the meaning of a word or word group or a sign or symbol. How to use definition in a …

  8. What Is DEF and How Does It Work? - MotorTrend

    Jul 29, 2024 · Diesel exhaust fluid, or DEF, is a key component in lowering pollutants emitted from diesel engines, helping to improve …

  9. Definition - Wikipedia

    A definition states the meaning of a word using other words. This is sometimes challenging. Common dictionaries contain lexical …

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

    Merriam-Webster's Dictionary - America's Most Trusted Dictionary, with articles, reviews, word suggestions, and more.