endure vs countenance

endure is not a noun while countenance is a noun.

Word	Noun	Adjective	Verb	Adverb
endure	No	No	Yes	No
countenance	Yes	No	Yes	No

As verbs, countenance is a hypernym of endure; that is, countenance is a word with a broader meaning than endure:

Other hypernyms of endure include allow, let, permit.

endure (noun)	countenance (noun)
	the appearance conveyed by a person's face
	the human face (`kisser' and `smiler' and `mug' are informal terms for `face' and `phiz' is British)
	formal and explicit approval

endure (verb)	countenance (verb)
put up with something or somebody unpleasant	consent to, give permission; permit
undergo or be subjected to
continue to live and avoid dying
last and be usable
face and withstand with courage
persist for a specified period of time
continue to exist