puree vs rub

puree and rub both are nouns.

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

As verbs, rub is a hypernym of puree; that is, rub is a word with a broader meaning than puree:

puree (noun)	rub (noun)
food prepared by cooking and straining or processed in a blender	the act of rubbing or wiping
	an unforeseen obstacle

puree (verb)	rub (verb)
rub through a strainer or process in an electric blender	move over something with pressure
	cause friction
	scrape or rub as if to relieve itching