slingshot vs plaything

slingshot and plaything both are nouns.

Word	Noun	Adjective	Verb	Adverb
slingshot	Yes	No	No	No
plaything	Yes	No	No	No

As nouns, plaything is a hypernym of slingshot; that is, plaything is a word with a broader meaning than slingshot:

slingshot: a plaything consisting of a Y-shaped stick with elastic between the arms; used to propel small stones
plaything: an artifact designed to be played with

Other hypernyms of slingshot include toy.

slingshot (noun)	plaything (noun)
a plaything consisting of a Y-shaped stick with elastic between the arms; used to propel small stones	an artifact designed to be played with