digest vs get the picture

digest is a noun but get the picture is not a noun.

Word	Noun	Adjective	Verb	Adverb
digest	Yes	No	Yes	No
get the picture	No	No	Yes	No

As verbs, get the picture is a hypernym of digest; that is, get the picture is a word with a broader meaning than digest:

Other hypernyms of digest include apprehend, compass, comprehend, dig, grasp, grok, savvy.

digest (noun)	get the picture (noun)
something that is compiled (as into a single book or file)
a periodical that summarizes the news

digest (verb)	get the picture (verb)
make more concise	get the meaning of something
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