man vs man

man and man both are nouns.

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

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

man: all of the living human inhabitants of the earth
man: any living or extinct member of the family Hominidae characterized by superior intelligence, articulate speech, and erect carriage

Other hypernyms of man include group, grouping, homo, human, human being.

As nouns, man is a hyponym of man; that is, man is a word with a more specific, narrower meaning than man:

man: any living or extinct member of the family Hominidae characterized by superior intelligence, articulate speech, and erect carriage
man: all of the living human inhabitants of the earth

man (noun)	man (noun)
all of the living human inhabitants of the earth	all of the living human inhabitants of the earth
any living or extinct member of the family Hominidae characterized by superior intelligence, articulate speech, and erect carriage	any living or extinct member of the family Hominidae characterized by superior intelligence, articulate speech, and erect carriage
game equipment consisting of an object used in playing certain board games	game equipment consisting of an object used in playing certain board games
an adult person who is male (as opposed to a woman)	an adult person who is male (as opposed to a woman)
someone who serves in the armed forces; a member of a military force	someone who serves in the armed forces; a member of a military force
the generic use of the word to refer to any human being	the generic use of the word to refer to any human being
a manservant who acts as a personal attendant to his employer	a manservant who acts as a personal attendant to his employer
an adult male person who has a manly character (virile and courageous competent)	an adult male person who has a manly character (virile and courageous competent)
a male person who plays a significant role (husband or lover or boyfriend) in the life of a particular woman	a male person who plays a significant role (husband or lover or boyfriend) in the life of a particular woman
a male subordinate	a male subordinate

man (verb)	man (verb)
provide with workers	provide with workers
take charge of a certain job; occupy a certain work place	take charge of a certain job; occupy a certain work place