Hat a. : Hot.

Hat : sing. pres. of Hote to be called. Cf.

Hat n. : A covering for the head; esp., one with a crown and brim, made of various materials, and worn by men or women for protecting the head from the sun or weather, or for ornament.

Example:
WHat do they do with the Hats after a player scores a Hat trick?

Taxonomy
crown, brim, hats, military, felt hat, Hat size, brim hat, puggaree, hatband, free encyclopedia, visor, fur, fur hat, peak, sweatband, band, Straw hat, the crown.

Defination from the web:
hat. ... One of the most famous London hat-makers was Locks of St James's Street. ...