teeter vs teeter-totter

teeter and teeter-totter both are nouns.

Word	Noun	Adjective	Verb	Adverb
teeter	Yes	No	Yes	No
teeter-totter	Yes	No	Yes	No

As nouns, teeter and teeter-totter are synonyms defined as:

teeter and teeter-totter: a plaything consisting of a board balanced on a fulcrum; the board is ridden up and down by children at either end

Other synonyms of teeter include dandle board, seesaw, teeterboard, teetertotter, tilting board.

teeter (noun)	teeter-totter (noun)
a plaything consisting of a board balanced on a fulcrum; the board is ridden up and down by children at either end	a plaything consisting of a board balanced on a fulcrum; the board is ridden up and down by children at either end

teeter (verb)	teeter-totter (verb)
move unsteadily, with a rocking motion	ride on a plank