contribution vs contribute

contribution is a noun but contribute is not a noun.

Word	Noun	Adjective	Verb	Adverb
contribution	Yes	No	No	No
contribute	No	No	Yes	No

contribution (noun)	contribute (noun)
act of giving in common with others for a common purpose especially to a charity
a writing for publication especially one of a collection of writings as an article or story
the effort contributed by a person in bringing about a result
a voluntary gift (as of money or service or ideas) made to some worthwhile cause
an amount of money contributed