bearskin vs busby

bearskin and busby both are nouns.

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

As nouns, bearskin and busby are synonyms defined as:

bearskin and busby: tall hat; worn by some British soldiers on ceremonial occasions

Other synonyms of bearskin include shako.

bearskin (noun)	busby (noun)
tall hat; worn by some British soldiers on ceremonial occasions	tall hat; worn by some British soldiers on ceremonial occasions
the pelt of a bear