gender vs male

gender and male both are nouns.

Word	Noun	Adjective	Verb	Adverb
gender	Yes	No	No	No
male	Yes	Yes	No	No

gender (noun)	male (noun)
the properties that distinguish organisms on the basis of their reproductive roles	an animal that produces gametes (spermatozoa) that can fertilize female gametes (ova)
a grammatical category in inflected languages governing the agreement between nouns and pronouns and adjectives; in some languages it is quite arbitrary but in Indo-European languages it is usually based on sex or animateness	a person who belongs to the sex that cannot have babies

gender (adjective)	male (adjective)
	being the sex (of plant or animal) that produces gametes (spermatozoa) that perform the fertilizing function in generation
	for or pertaining to or composed of men or boys
	characteristic of a man