comprehend vs get onto

comprehend and get onto both are verbs.

Word	Noun	Adjective	Verb	Adverb
comprehend	No	No	Yes	No
get onto	No	No	Yes	No

As verbs, get onto is a hyponym of comprehend; that is, get onto is a word with a more specific, narrower meaning than comprehend:

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

comprehend (verb)	get onto (verb)
get the meaning of something	understand, usually after some initial difficulty
to become aware of through the senses
include in scope; include as part of something broader; have as one's sphere or territory