Definition of "Badge" :

noun: any feature that is regarded as a sign of status (a particular power or quality or rank)

"Wearing a tie was regarded as a badge of respectability."

noun: an emblem (a small piece of plastic or cloth or metal) that signifies your status (rank or membership or affiliation etc.)

"They checked everyone's badge before letting them in."

verb: put a badge on

"The workers here must be badged."