First Known Use: 1979
Dictionary
1def
adjective \ˈdef\
def·ferdef·fest
Definition of DEF
slang : cool 7
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Origin of DEF
probably alteration of death (from the phrase to death excessively)
2def
abbreviation
Definition of DEF
1
defendant; defense
2
deferred
3
defined; definition
4
definite
Medical Dictionary
def
abbreviation
Medical Definition of DEF
1
defecation
2
deficient
3
definite
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