(1):

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

(2):

(n.) Something characteristic; a mark; a token.

(3):

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

(4):

(v. t.) To mark or distinguish with a badge.