DEF Definition & Meaning - Merriam-Webster
What does the abbreviation DEF stand for? Meaning: defendant; defense. How to use def in a sentence.
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 - 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 […]
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 …
Diesel Exhaust Fluid (DEF): Everything You Need to Know | Diesel …
Feb 10, 2025 · DEF is essential for reducing emissions in trucks made after 2010, and choosing a high-quality DEF product can help maintain efficiency and prevent contamination issues.
Def - definition of def by The Free Dictionary
def Also found in: Thesaurus, Medical, Legal, Financial, Acronyms, Idioms, Encyclopedia, Wikipedia.
DEF | definition in the Cambridge English Dictionary
DEF meaning: 1. very good: 2. very good: . Learn more.
DEF definition and meaning | Collins English Dictionary
Feb 9, 2016 · 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 Does 'Def' Mean? A Deep Dive into Its Origins and Usage
The word ‘def’ traces its roots back to the 1980s, emerging from African American Vernacular English (AAVE). It serves as a shorthand for “definite” or “definitely,” often conveying strong …
DEF Definition & Meaning | Dictionary.com
DEF definition: definitely. See examples of def used in a sentence.