busby vs hat

busby and hat both are nouns.

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

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

busby: tall hat; worn by some British soldiers on ceremonial occasions
hat: headdress that protects the head from bad weather; has shaped crown and usually a brim

Other hypernyms of busby include chapeau, lid.

busby (noun)	hat (noun)
tall hat; worn by some British soldiers on ceremonial occasions	an informal term for a person's role
	headdress that protects the head from bad weather; has shaped crown and usually a brim

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