rub vs obstruction

obstruction vs rub

rub and obstruction both are nouns.

rub is a verb but obstruction is not a verb.

Word	Noun	Adjective	Verb	Adverb
rub	Yes	No	Yes	No
obstruction	Yes	No	No	No

As nouns, obstruction is a hypernym of rub; that is, obstruction is a word with a broader meaning than rub:

rub: an unforeseen obstacle
obstruction: something immaterial that stands in the way and must be circumvented or surmounted

Other hypernyms of rub include obstacle.

rub (noun)	obstruction (noun)
the act of rubbing or wiping	getting in someone's way
an unforeseen obstacle	the act of obstructing
	any structure that makes progress difficult
	something immaterial that stands in the way and must be circumvented or surmounted
	the physical condition of blocking or filling a passage with an obstruction

rub (verb)	obstruction (verb)
move over something with pressure
cause friction
scrape or rub as if to relieve itching

Difference between rub and obstruction

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