- The definition of a thief is a person who takes something without permission or without the owner knowing.
An example of a thief is someone who steals wallets out of back pockets.
A thief steals a woman's wallet.
a person who steals, esp. secretly; one guilty of theft, or larceny
Origin of thiefMiddle English ; from Old English theof, thiof, akin to German dieb ; from Indo-European base an unverified form teup-, to cower, lurk
nounpl. thieves thieves
One who commits the act or crime of theft.
Origin of thiefMiddle English, from Old English thēof.
- One who has carried out a theft.
- thief in law