Robber (noun)

1. A person who steals from another person or place by using force or the threat of force.
2. A criminal who commits robbery.

Origin:

Middle english robbere, from old english rēafere, from rēafian "to rob" + -ere.

Examples:

1. The robber stole money from the store.
2. The bank robber was caught by the police.
3. The robber was armed with a gun.
4. The robber wore a mask to conceal his identity.
5. The robber fled the scene on foot.