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Definition of deet

deet

/diːt/
deet
Plural:deets
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deet Lexical Profile

deet Game Scores & Validity

• noun

1

(Informal, usually in the plural 'deets') A piece of information, fact, or specific point about an event, plan, or situation; a detail.

Example

"Text me the deets once you know where and when everyone is meeting for dinner."

2

(Often capitalized as DEET) A slightly yellow oily liquid compound, N,N-diethyl-meta-toluamide, widely used as the active ingredient in commercial insect repellents to protect against mosquitoes, ticks, and other biting arthropods.

Example

"Before hiking through the marshy woods, the campers applied a spray containing deet to ward off mosquitoes and ticks."

Synonyms
View all synonyms for deet

• Rhymes for deet

• Nearby Words

deerstalker
deescalate
deescalation
deet
def
deface
defacement

Word Origin & Etymology

The insect repellent sense was coined in the mid-20th century as an acronym from its chemical name, diethyltoluamide. The informal sense is a late 20th-century respelling of the first syllable of 'detail'.

Cite this Entry

Wordmom. (2026). Definition of Deet. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/deet
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