bowler vs hat

bowler and hat both are nouns.

Word	Noun	Adjective	Verb	Adverb
bowler	Yes	No	No	No
hat	Yes	No	Yes	No

As nouns, hat is a hypernym of bowler; that is, hat is a word with a broader meaning than bowler:

bowler: a felt hat that is round and hard with a narrow brim
hat: headdress that protects the head from bad weather; has shaped crown and usually a brim

Other hypernyms of bowler include chapeau, lid.

bowler (noun)	hat (noun)
a felt hat that is round and hard with a narrow brim	an informal term for a person's role
a player who rolls balls down an alley at pins	headdress that protects the head from bad weather; has shaped crown and usually a brim
a cricketer who delivers the ball to the batsman in cricket

bowler (verb)	hat (verb)
	put on or wear a hat
	furnish with a hat