A patch or other object that indicates a person's official or military rank, or membership in a group or organization.
A mark or token by which anything is known.
A symbol or token of personal power, status, or office, or of an official body of government or jurisdiction.
A commissioned officer of the United States Navy whose rank is above an ensign's and below a lieutenant, or a corresponding rank in other navies.
A commissioned officer in the United States Coast Guard, Public Health Service, or National Atmospheric and Oceanic Administration whose rank is above an ensign and below a lieutenant.