grasp vs digest

grasp and digest both are nouns.

Word	Noun	Adjective	Verb	Adverb
grasp	Yes	No	Yes	No
digest	Yes	No	Yes	No

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

Other hyponyms of grasp include figure, catch on, cotton on, get it, get onto, get wise, latch on, tumble, twig, intuit.

grasp (noun)	digest (noun)
the act of grasping	something that is compiled (as into a single book or file)
an intellectual hold or understanding	a periodical that summarizes the news
understanding of the nature or meaning or quality or magnitude of something
the limit of capability

grasp (verb)	digest (verb)
get the meaning of something	make more concise
hold firmly	systematize, as by classifying and summarizing
	become assimilated into the body
	soften or disintegrate by means of chemical action, heat, or moisture
	soften or disintegrate, as by undergoing exposure to heat or moisture
	arrange and integrate in the mind
	put up with something or somebody unpleasant
	convert food into absorbable substances