adopt vs hook on

adopt and hook on both are verbs.

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

As verbs, hook on is a hyponym of adopt; that is, hook on is a word with a more specific, narrower meaning than adopt:

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

Other hyponyms of adopt include fasten on, latch on, seize on, take up.

adopt (verb)	hook on (verb)
take into one's family	adopt
take on a certain form, attribute, or aspect
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