teetertotter vs playground

teetertotter and playground both are nouns.

Word	Noun	Adjective	Verb	Adverb
teetertotter	Yes	No	Yes	No
playground	Yes	No	No	No

teetertotter (noun)	playground (noun)
a plaything consisting of a board balanced on a fulcrum; the board is ridden up and down by children at either end	yard consisting of an outdoor area for children's play
	an area where many people go for recreation, holidays or other purposes

teetertotter (verb)	playground (verb)
ride on a plank