rattle vs plaything

rattle and plaything both are nouns.

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

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

Other hypernyms of rattle include toy.

rattle (noun)	plaything (noun)
loosely connected horny sections at the end of a rattlesnake's tail	an artifact designed to be played with
a baby's toy that makes percussive noises when shaken
a rapid series of short loud sounds (as might be heard with a stethoscope in some types of respiratory disorders)

rattle (verb)	plaything (verb)
shake and cause to make a rattling noise
make short successive sounds