Definitions:
an officer of the highest rank in the armed forces of some countries

a federal or municipal law-enforcement officer.

an official responsible for supervising sports events, and for controlling crowds in other public events

(in the uk) an official accompanying a judge on circuit to act as secretary and personal assistant.

assemble and arrange (a group of people, especially troops) in order

combine (coats of arms) to indicate marriage, descent, or the bearing of office