boost vs contribute

boost is a noun but contribute is not a noun.

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

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

Other hyponyms of boost include connive at, wink at, cultivate, foster, further, spur, help, carry, feed, conduce, lead.

boost (noun)	contribute (noun)
the act of giving hope or support to someone
the act of giving a push
an increase in cost

boost (verb)	contribute (verb)
increase or raise	contribute to some cause
give a boost to; be beneficial to	bestow a quality on
push or shove upward, as if from below or behind	provide
increase	be conducive to
contribute to the progress or growth of