Definition
| • | 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. |
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