teeter-totter tee·ter·tot·ter uncommon noun 1. a plaything consisting of a board balanced on a fulcrum; the board is ridden up and down by children at either end Synonymsseesawteeterboardtilting boarddandle board Related words Word family seesaw Broader terms plaything Parts playground WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.