teeterboard vs plaything

teeterboard and plaything both are nouns.

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

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

teeterboard: a plaything consisting of a board balanced on a fulcrum; the board is ridden up and down by children at either end
plaything: an artifact designed to be played with

Other hypernyms of teeterboard include toy.

teeterboard (noun)	plaything (noun)
a plaything consisting of a board balanced on a fulcrum; the board is ridden up and down by children at either end	an artifact designed to be played with