bandit

noun

1. One who robs others in a lawless area, especially as part of a group.

   “Do you recollect a story my nurse told us of a Sicilian bandit, the terror of the country?—how he saved a young child from a cottage on fire, brought it up delicately, and far removed from his own pursuits; while, at his execution, his chief regret was the future provision for that boy?”

2. An outlaw.
3. One who cheats others.
4. An aircraft identified as an enemy, but distinct from "hostile" or "threat" in that it is not immediately to be engaged.
5. (slang)A runner who covertly joins a race without having registered as a participant.
6. (UK, dated, derogatory, slang)Synonym of arse bandit.

verb

1. (ambitransitive)To rob, or steal from, in the manner of a bandit.

   “First, she read the bandit news in the paper, and was rather disappointed to learn that her man had evidently taken a night off from banditing. An imitator of the bandit had made an unsuccessful attempt to hold up a drug-store, and had backed out and run when the nervy proprietor reached for a gun; but that was all.”

   “As the sanctuary was bandited at least once, it may be that the silver wine cups I have are from the treasure.”