Robbery is taking something that does not belong to you.(noun)
When you steal money from someone by pointing a gun at his head and demanding he give it to you, this is an example of robbery.
See robbery in Webster's New World College Dictionary
noun pl. robberies
Origin: ME roberie < OFr: see rob & -ery
See robbery in American Heritage Dictionary 4
noun pl. rob·ber·ies
Learn more about robbery