Definitions of criminals

Thief is a person who steals things secretly, usually without violence. When violence is used, especially out of doors, a word robber is preferred:

Thieves stole ₤ 1,000 from the post office last night.

Robber is a person who steals something from a person or place, especially by violence or threat:

The robber stole ₤ 2,000 from a bank, by threatening people with a gun.

Pickpocket is a person who steals something out of your pocket in crowded places:

The pickpocket took the purse in a crowded train.

Burglar is a person who enters a building during the hours of darkness in order to steal. A person who enters a building in daylight to steal is a thief, or, if he breaks into a building by using force, is a house - breaker:

The burglars escaped through the window.

Shoplifter is a person who steals from the shops:

A security officer stopped the shoplifter who tried to leave the shop with unpaid goods.

Bigamist is a person who marries illegally, being married already.

Traitor is a person who betrays his or her country to another state.

Forger is a person who makes false money or signatures.

Smuggler is someone who gets goods into or out of a country illegally without paying duties.

Spy is a person who gets secret information from another country.

Kidnapper is someone who takes away people by force and demands money for their return.

Drug dealer is a person who buys and sells drugs illegally.

Terrorist is a person who uses violence for political, economical and religions reasons.

Arsonist is a person who sets fire to property illegally.

Accomplice is a person who helps a criminal in a criminal act.

Murderer is a person who kills someone.

Gangster is a member of a criminal group.