lean against vs adjoin

lean against and adjoin both are verbs.

Word	Noun	Adjective	Verb	Adverb
lean against	No	No	Yes	No
adjoin	No	No	Yes	No

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

Other hypernyms of lean against include contact, meet, touch.

lean against (verb)	adjoin (verb)
rest on for support	attach or add
	lie adjacent to another or share a boundary
	be in direct physical contact with; make contact