The meaning of DEF is definitely. How to use def in a sentence.

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 …

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.

Jul 1, 2011 · 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 sentence.

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

2 days ago · Spell your way past the fork in the road. The world's leading online dictionary: English definitions, synonyms, word origins, example sentences, word games, and more. A trusted authority …

Simmons' Def Jam has demonstrated a clear ability to maintain its leadership position as the premier rap label in the music business--a plus in the eyes of the investment community.

Mar 27, 2026 · EPA Administrator Lee Zeldin has taken to address nationwide concerns from farmers, truckers, motor coach operators, and other diesel equipment operators regarding Diesel Exhaust …

Jul 27, 2026 · 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 …

Jun 14, 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 […]