absorb vs rivet

absorb is not a noun while rivet is a noun.

Word	Noun	Adjective	Verb	Adverb
absorb	No	No	Yes	No
rivet	Yes	No	Yes	No

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

Other hyponyms of absorb include involve, consume.

As verbs, rivet is a hypernym of absorb; that is, rivet is a word with a broader meaning than absorb:

Other hypernyms of absorb include center, centre, concentrate, focus, pore.

absorb (noun)	rivet (noun)
	heavy pin having a head at one end and the other end being hammered flat after being passed through holes in the pieces that are fastened together
	ornament consisting of a circular rounded protuberance (as on a vault or shield or belt)

absorb (verb)	rivet (verb)
cause to become one with	direct one's attention on something
take up mentally	hold (someone's attention)
consume all of one's attention or time	fasten with a rivet or rivets
devote (oneself) fully to
take in, also metaphorically
become imbued
assimilate or take in
take up, as of debts or payments
suck or take up or in