latch on vs adopt

latch on and adopt both are verbs.

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

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

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

Other hypernyms of latch on include embrace, espouse, sweep up.

latch on (verb)	adopt (verb)
understand, usually after some initial difficulty	take into one's family
adopt	take on a certain form, attribute, or aspect
take hold of or attach to	take up the cause, ideology, practice, method, of someone and use it as one's own
	put into dramatic form
	take up and practice as one's own
	choose and follow; as of theories, ideas, policies, strategies or plans
	take on titles, offices, duties, responsibilities