master vs man

master and man both are nouns.

Word	Noun	Adjective	Verb	Adverb
master	Yes	Yes	Yes	No
man	Yes	No	Yes	No

As nouns, man is a hypernym of master; that is, man is a word with a broader meaning than master:

Other hypernyms of master include employer, adult male.

As nouns, man is a hypernym of master; that is, man is a word with a broader meaning than master:

Other hypernyms of master include adult male, head, head teacher, principal, school principal.

master (noun)	man (noun)
an original creation (i.e., an audio recording) from which copies can be made	all of the living human inhabitants of the earth
key that secures entrance everywhere	any living or extinct member of the family Hominidae characterized by superior intelligence, articulate speech, and erect carriage
an artist of consummate skill	game equipment consisting of an object used in playing certain board games
a combatant who is able to defeat rivals	an adult person who is male (as opposed to a woman)
an authority qualified to teach apprentices	someone who serves in the armed forces; a member of a military force
directs the work of others	the generic use of the word to refer to any human being
a person who has general authority over others	a manservant who acts as a personal attendant to his employer
someone who holds a master's degree from academic institution	an adult male person who has a manly character (virile and courageous competent)
presiding officer of a school	a male person who plays a significant role (husband or lover or boyfriend) in the life of a particular woman
an officer who is licensed to command a merchant ship	a male subordinate

master (adjective)	man (adjective)
most important element

master (verb)	man (verb)
have a firm understanding or knowledge of; be on top of	provide with workers
be or become completely proficient or skilled in	take charge of a certain job; occupy a certain work place
get on top of; deal with successfully
have dominance or the power to defeat over