spat vs offspring

spat and offspring both are nouns.

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

As nouns, offspring is a hypernym of spat; that is, offspring is a word with a broader meaning than spat:

Other hypernyms of spat include young.

spat (noun)	offspring (noun)
a young oyster or other bivalve	any immature animal
a cloth covering (a legging) that covers the instep and ankles	something that comes into existence as a result
a quarrel about petty points	the immediate descendants of a person

spat (verb)	offspring (verb)
clap one's hands together
spawn
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