back and forth
1
repeatedly going in one direction and then in the opposite direction
- The pendulum swung back and forth, marking the passage of time.
- The children played catch, throwing the ball back and forth.
- The windshield wipers moved back and forth, clearing the rain from the car window.
- The boat rocked back and forth with the gentle movement of the waves.
- The swing swayed back and forth as the child enjoyed the playground.
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