friction vs attrition

friction and attrition both are nouns.

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

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

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

friction: the resistance encountered when one body is moved in contact with another
attrition: the wearing down of rock particles by friction due to water or wind or ice

Other hyponyms of friction include abrasion, detrition, grinding, adhesive friction, grip, traction.

friction (noun)	attrition (noun)
effort expended in moving one object over another with pressure	the act of rubbing together; wearing something down by friction
the resistance encountered when one body is moved in contact with another	a wearing down to weaken or destroy
a state of conflict between persons	sorrow for sin arising from fear of damnation
	the wearing down of rock particles by friction due to water or wind or ice
	erosion by friction