(n): clothing for the head
(n): an informal term for a person's role
(n): the actions and activities assigned to or required or expected of a person or group
(v): put on or wear a hat
(v): put clothing on one's body
(v): furnish with a hat
(v): give something useful or necessary to
Captured at Yorktown: "116 hats," and received from the British "Deputy-Quarter-Master" as subject to the Articles of Capitulation, 25 hats. The next day, "in consequence of his violation of the right of flags, were adjudged to be forfeited" 170 hats.