endurance vs tolerance

endurance and tolerance both are nouns.

Word	Noun	Adjective	Verb	Adverb
endurance	Yes	No	No	No
tolerance	Yes	No	No	No

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

endurance: the power to withstand hardship or stress
tolerance: the power or capacity of an organism to tolerate unfavorable environmental conditions

Other hyponyms of endurance include sufferance, stamina, staying power, toughness, long-sufferance, long-suffering.

endurance (noun)	tolerance (noun)
the power to withstand hardship or stress	the act of tolerating something
a state of surviving; remaining alive	a permissible difference; allowing some freedom to move within limits
	the power or capacity of an organism to tolerate unfavorable environmental conditions
	a disposition to allow freedom of choice and behavior
	willingness to recognize and respect the beliefs or practices of others