plural of sergeant-at-arms

A person charged with keeping order at a meeting.

The fish Latropiscis purpurissatus, of Australia.

A non-commissioned officer in the armed forces of several countries, ranking above a sergeant. (Sometimes abbreviated to "staff").

plural of staff sergeant

plural of colour sergeant

(Britain) A non-commissioned officer in some infantry regiments of the British army, equivalent in rank to a staff sergeant in most other armies. A colour sergeant ranks above a sergeant and below a warrant officer.

(military, US) A non-commissioned officer in the United States Army, ranking above sergeant first class and below sergeant major; equal in grade and pay to a first sergeant.

plural of sergeant-major

(Canada) A senior non-commissioned appointment in the Army of a company or unit, directly responsible to the officer in charge for their soldiers' performance, standards, discipline, morale, welfare, et al, that can be held by a Warrant Officer or above.