About 184,000 results
Open links in new tab
  1. DEF Definition & Meaning - Merriam-Webster

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

  2. Diesel exhaust fluid - Wikipedia

    Diesel exhaust fluid (DEF; also known as AUS 32 and sometimes marketed as AdBlue[3]) is a liquid used to reduce the amount of air …

  3. DEF - Diesel Exhaust Fluid & DEF Fluid - AutoZone

    Looking for DEF fluid near me? We carry diesel exhaust fluid, also known as AdBlue, in jugs and bulk sizes with free delivery or in …

  4. Def - definition of def by The Free Dictionary

    Simmons' Def Jam has demonstrated a clear ability to maintain its leadership position as the premier rap label in the music business- …

  5. DEF Definition & Meaning | Dictionary.com

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

  6. DEF | English meaning - Cambridge Dictionary

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

  7. DEFINITION Definition & Meaning - Merriam-Webster

    6 days ago · The meaning of DEFINITION is a statement of the meaning of a word or word group or a sign or symbol. How to use …

  8. def - Wiktionary, the free dictionary

    Oct 28, 2026 · def (countable and uncountable, plural defs) In that case Wills, J., adopted a dictionary def of “Cowkeeper” as, “one …

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

    Spell your way past the fork in the road. The world's leading online dictionary: English definitions, synonyms, word origins, example …

  10. BlueDEF® Diesel Exhaust Fluid - 2.5 Gallon at Menards®

    DEF is the primary ingredient used to help convert NOx to harmless nitrogen and water. BlueDEF® is stable, colorless, non …