An armed robber is a criminal who uses weapons to commit robberies. The term 'armed robber' can be broken down into three words: BANDIT (6 letters), GUNMAN (6 letters), and stickupman (10 letters). A BANDIT is a person who robs or steals, usually from a person or place. A GUNMAN is someone who carries a gun, often for the purpose of committing a crime. A stickupman is a person who uses a weapon, usually a gun, to threaten someone in order to steal from them.