n. A distinctive mark, token, sign, emblem or cognizance, worn on one's clothing, as an insignia of some rank, or of the membership of an organization.n. A small nameplate, identifying the wearer, and often giving additional information.n. A card, sometimes with a barcode or magnetic strip, granting access to a certain area.n. Something characteristic; a mark; a token.n. A brand on the hand of a thief, etc.n. A carved ornament on the stern of a vessel, containing a window or the representation of one.n. A distinctive mark worn by servants, retainers, and followers of royalty or nobility, who, being beneath the rank of gentlemen, have no right to armorial bearings.v. To mark or distinguish with a badge.v. To show a badge to.v. To enter a restricted area by showing one's badge.