run into vs spat

run into is not a noun while spat is a noun.

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

As verbs, spat is a hyponym of run into; that is, spat is a word with a more specific, narrower meaning than run into:

run into (noun)	spat (noun)
	a young oyster or other bivalve
	a cloth covering (a legging) that covers the instep and ankles
	a quarrel about petty points

run into (verb)	spat (verb)
collide violently with an obstacle	clap one's hands together
hit against; come into sudden contact with	spawn
come together	engage in a brief and petty quarrel
be beset by	clap one's hands or shout after performances to indicate approval
	strike with a sound like that of falling rain
	become permanently attached
	come down like raindrops