DEF Definition & Meaning - Merriam-Webster
The meaning of DEF is definitely. How to use def in a sentence.
Meanings & Definitions of English Words | Dictionary.com
1 day ago · Combine words to connect the squares. The world's leading online dictionary: English definitions, synonyms, word origins, example sentences, word games, and more. A trusted authority …
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 pollution created by a diesel engine. Specifically, DEF is an …
def - Wiktionary, the free dictionary
Feb 28, 2026 · 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 […]
Def - definition of def by The Free Dictionary
def Also found in: Thesaurus, Medical, Legal, Financial, Acronyms, Idioms, Encyclopedia, Wikipedia.
Diesel Exhaust Fluid - Shop DEF Fluid - AutoZone
Reduce emissions and keep your diesel vehicle running clean with diesel exhaust fluid (DEF) from AutoZone. We sell the best brands, including AutoZone, Lumax, and Peak Blue DEF fluid.
DEF | definition in the Cambridge English Dictionary
DEF meaning: 1. very good: 2. very good: . Learn more.
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.
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 efficiency and reduce emissions.
What Exactly Is DEF & What Does The Acronym Stand For?
Apr 19, 2025 · The letters DEF stand for diesel exhaust fluid. Sometimes, you'll hear people refer to it as DEF fluid, and all three formats are acceptable. If you're interested in learning more about DEF,...