butt against vs adjoin

butt against and adjoin both are verbs.

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

As verbs, butt against and adjoin are synonyms defined as:

Other synonyms of butt against include abut, border, butt, butt on, edge, march.

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

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

butt against (verb)	adjoin (verb)
lie adjacent to another or share a boundary	attach or add
collide violently with an obstacle	lie adjacent to another or share a boundary
	be in direct physical contact with; make contact