rub vs puree

rub and puree both are nouns.

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

As verbs, puree is a hyponym of rub; that is, puree is a word with a more specific, narrower meaning than rub:

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

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