bump into vs butt against

bump into and butt against both are verbs.

Word	Noun	Adjective	Verb	Adverb
bump into	No	No	Yes	No
butt against	No	No	Yes	No

As verbs, bump into and butt against are synonyms defined as:

Other synonyms of bump into include jar against, knock against, run into.

bump into (verb)	butt against (verb)
collide violently with an obstacle	lie adjacent to another or share a boundary
	collide violently with an obstacle