Dictionary 1. (n. pl.) Distinguishing marks of authority, office, or honor; badges; tokens; decorations; as, the insignia of royalty or of an order.2. (n. pl.) Typical and characteristic marks or signs, by which anything is known or distinguished; as, the insignia of a trade. Thesaurus badge banner character characteristic decoration device differentia earmark emblem hallmark idiosyncrasy image index indicant indicator keynote mark measure note peculiarity picture property regalia representation representative seal sigil sign signal signature stamp sure sign symptom telltale sign trait |