sweep up vs latch on

sweep up and latch on both are verbs.

Word	Noun	Adjective	Verb	Adverb
sweep up	No	No	Yes	No
latch on	No	No	Yes	No

As verbs, latch on is a hyponym of sweep up; that is, latch on is a word with a more specific, narrower meaning than sweep up:

sweep up: take up the cause, ideology, practice, method, of someone and use it as one's own
latch on: adopt

Other hyponyms of sweep up include fasten on, hook on, seize on, take up.

sweep up (verb)	latch on (verb)
take up the cause, ideology, practice, method, of someone and use it as one's own	understand, usually after some initial difficulty
force into some kind of situation, condition, or course of action	adopt
	take hold of or attach to