rest on vs adjoin

rest on and adjoin both are verbs.

Word	Noun	Adjective	Verb	Adverb
rest on	No	No	Yes	No
adjoin	No	No	Yes	No

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

Other hypernyms of rest on include contact, meet, touch.

rest on (verb)	adjoin (verb)
rest on for support	attach or add
use as a basis for theories and claims	lie adjacent to another or share a boundary
	be in direct physical contact with; make contact