thief plural thieves [countable]
someone who steals things from another person or place [↪ theft, burglar, robber]:
Thieves broke into the offices and stole $150,000's worth of computer equipment.
They were nothing but petty thieves (=thieves who steal small things).
➔ be (as) thick as thievesat thick1 (12)WORD FOCUS: crime
crimes that involve stealing things: robbery, burglary, theft, shoplifting, fraud, carjacking
crimes that involve attacking people : assault, mugging, murder, rape
someone who commits crimes: criminal, thief, crook, burglar, mugger, robber, pickpocket, rapist, offender, lawbreakercrime
➔ See also crime