seesaw vs teeter

seesaw and teeter both are nouns.

Word	Noun	Adjective	Verb	Adverb
seesaw	Yes	No	Yes	No
teeter	Yes	No	Yes	No

As nouns, seesaw and teeter are synonyms defined as:

seesaw and teeter: 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 seesaw include dandle board, teeter-totter, teeterboard, teetertotter, tilting board.

As verbs, seesaw and teeter are synonyms defined as:

Other synonyms of seesaw include totter.

seesaw (noun)	teeter (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

seesaw (verb)	teeter (verb)
move up and down as if on a seesaw	move unsteadily, with a rocking motion
ride on a plank
move unsteadily, with a rocking motion