bang vs run into

bang is a noun but run into is not a noun.

Word	Noun	Adjective	Verb	Adverb
bang	Yes	No	Yes	Yes
run into	No	No	Yes	No

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

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

bang (noun)	run into (noun)
a conspicuous success
a border of hair that is cut short and hangs across the forehead
a sudden very loud noise
a vigorous blow
the swift release of a store of affective force

bang (verb)	run into (verb)
strike violently	collide violently with an obstacle
close violently	hit against; come into sudden contact with
leap, jerk, bang	come together
have sexual intercourse with	be beset by
move noisily
to produce a sharp often metallic explosive or percussive sound

bang (adverb)	run into (adverb)
directly