Badge

A distinctive mark, token, sign, or cognizance, worn on the person; as, the badge of a society; the badge of a policeman.

Something characteristic; a mark; a token.

A carved ornament on the stern of a vessel, containing a window or the representation of one.

To mark or distinguish with a badge.

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"