def

1
[ def ]
/ dɛf /

adverb Informal.

definitely: Going to Europe this summer? But def!

Origin of def

1
by shortening

Definition for def (2 of 3)

def 2
[ def ]
/ dɛf /

adjective

Slang. excellent: That hip-hop record is def!

Origin of def

2
An Americanism dating back to 1980–85; of uncertain origin

Definition for def (3 of 3)

Example sentences from the Web for def

British Dictionary definitions for def (1 of 2)

def
/ (dɛf) /

adjective

slang very good, esp of hip-hop

Word Origin for def

C20: perhaps from definitive

British Dictionary definitions for def (2 of 2)

def.

abbreviation for

definition

Medical definitions for def (1 of 2)

def

abbr.

decayed, extraction indicated due to caries, or filled (used for deciduous teeth)

Medical definitions for def (2 of 2)

DEF

abbr.

decayed, extraction indicated due to caries, or filled (used for permanent teeth)