boss vs brag

boss and brag both are nouns.

Word	Noun	Adjective	Verb	Adverb
boss	Yes	Yes	Yes	No
brag	Yes	Yes	Yes	No

As adjectives, boss and brag are synonyms defined as:

boss (noun)	brag (noun)
a circular rounded projection or protuberance	an instance of boastful talk
a person responsible for hiring workers
a person who exercises control over workers
a leader in a political party who controls votes and dictates appointments
a person who exercises control and makes decisions

boss (adjective)	brag (adjective)
exceptionally good	exceptionally good

boss (verb)	brag (verb)
raise in a relief	show off