A burglar, e.g., is a type of FELON, which is a person who has committed a crime and been convicted of it. Burglary is a type of theft that involves entering a building or other structure with the intent to commit a crime, usually theft. Burglars typically break into homes or businesses to steal money, jewelry, electronics, or other valuable items. Burglary is considered a serious crime and can result in significant jail time.