Seesaw

A play among children in which they are seated upon the opposite ends of a plank which is balanced in the middle, and move alternately up and down.

A plank or board adjusted for this play.

A vibratory or reciprocating motion.

Same as Crossruff.

To move with a reciprocating motion; to move backward and forward, or upward and downward.

To cause to move backward and forward in seesaw fashion.

Moving up and down, or to and fro; having a reciprocating motion.