revamp vs renew

revamp and renew both are verbs.

Word	Noun	Adjective	Verb	Adverb
revamp	No	No	Yes	No
renew	No	No	Yes	No

As verbs, renew is a hypernym of revamp; that is, renew is a word with a broader meaning than revamp:

revamp: to patch up or renovate; repair or restore
renew: reestablish on a new, usually improved, basis or make new or like new

Other hypernyms of revamp include regenerate.

revamp (verb)	renew (verb)
to patch up or renovate; repair or restore	cause to appear in a new form
provide (a shoe) with a new vamp	reestablish on a new, usually improved, basis or make new or like new