Main Entry: ¹see·saw

Pronunciation: \ˈsē-ˌsȯ\

Function: noun

Etymology: probably from reduplication of ³saw

Date: 1704

1 : an alternating up-and-down or backward-and-forward motion or movement; also : a contest or struggle in which now one side now the other has the lead
2 a : a pastime in which two children or groups of children ride on opposite ends of a plank balanced in the middle so that one end goes up as the other goes down b : the plank or apparatus so used

— seesaw adjective