insignia (noun) /ɪnˈsɪɡ.ni.ə/
1
A patch or other object that indicates a person's official or military rank, or membership in a group or organization.
2
A symbol or token of personal power, status, or office, or of an official body of government or jurisdiction.
3
(figurative) A mark or token by which anything is known.
4
plural of insignium
5
plural of insigne