suck up vs absorb

suck up and absorb both are verbs.

Word	Noun	Adjective	Verb	Adverb
suck up	No	No	Yes	No
absorb	No	No	Yes	No

As verbs, suck up and absorb are synonyms defined as:

Other synonyms of suck up include draw, imbibe, soak up, sop up, suck, take in, take up.

suck up (verb)	absorb (verb)
try to gain favor by cringing or flattering	cause to become one with
take in, also metaphorically	take up mentally
ingratiate oneself to; often with insincere behavior	consume all of one's attention or time
	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