knock against vs run into

knock against and run into both are verbs.

Word	Noun	Adjective	Verb	Adverb
knock against	No	No	Yes	No
run into	No	No	Yes	No

As verbs, knock against and run into are synonyms defined as:

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

As verbs, run into is a hypernym of knock against; that is, run into is a word with a broader meaning than knock against:

Other hypernyms of knock against include collide with, hit, impinge on, strike.

knock against (verb)	run into (verb)
collide violently with an obstacle	collide violently with an obstacle
	hit against; come into sudden contact with
	come together
	be beset by