get onto vs comprehend

get onto and comprehend both are verbs.

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

As verbs, comprehend is a hypernym of get onto; that is, comprehend is a word with a broader meaning than get onto:

Other hypernyms of get onto include apprehend, compass, dig, get the picture, grasp, grok, savvy.

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