a plank balanced in the middle so that one end goes up as the other goes down, or any similar device
the game or activity played by two or more people riding on opposite ends of a seesaw and alternately rising in the air and sinking to the ground
an alternating up-and-down or backward-and-forward movement
anything, e.g. a process or movement, that alternates
He swung on a seesaw of shame and defiance
reduplication of saw3. Orig used by sawyers as a rhythmical refrain in work chants; the nursery rhyme Seesaw, Margery Daw comes from such a chant