latch on vs comprehend

latch on and comprehend both are verbs.

Word	Noun	Adjective	Verb	Adverb
latch on	No	No	Yes	No
comprehend	No	No	Yes	No

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

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

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