spat vs spawn

spat and spawn both are nouns.

Word	Noun	Adjective	Verb	Adverb
spat	Yes	No	Yes	No
spawn	Yes	No	Yes	No

As verbs, spawn is a hypernym of spat; that is, spawn is a word with a broader meaning than spat:

spat (noun)	spawn (noun)
a young oyster or other bivalve	the mass of eggs deposited by fish or amphibians or molluscs
a cloth covering (a legging) that covers the instep and ankles
a quarrel about petty points

spat (verb)	spawn (verb)
clap one's hands together	lay spawn
spawn	call forth
engage in a brief and petty quarrel
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