whirligig vs plaything

whirligig and plaything both are nouns.

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

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

whirligig: a conical child's plaything tapering to a steel point on which it can be made to spin
plaything: an artifact designed to be played with

Other hypernyms of whirligig include toy.

whirligig (noun)	plaything (noun)
a large, rotating machine with seats for children to ride on for amusement	an artifact designed to be played with
a conical child's plaything tapering to a steel point on which it can be made to spin

whirligig (verb)	plaything (verb)
whirl or spin like a whirligig