friction vs sweat

friction and sweat both are nouns.

Word	Noun	Adjective	Verb	Adverb
friction	Yes	No	No	No
sweat	Yes	No	Yes	No

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

Other hypernyms of friction include effort, elbow grease, exertion, travail.

friction (noun)	sweat (noun)
effort expended in moving one object over another with pressure	use of physical or mental energy; hard work
the resistance encountered when one body is moved in contact with another	salty fluid secreted by sweat glands
a state of conflict between persons	condensation of moisture on a cold surface
	agitation resulting from active worry

friction (verb)	sweat (verb)
	excrete perspiration through the pores in the skin