swingswingswingsswungswinging1verb (swings, swinging, swung/, has swung)1to move backwards and forwards or from side to side through the air; to make somebody or something do this: Monkeys were swinging from the trees.He swung his arms as he walked.2to move in a curve: The door swung open.swingswingswings2nouna seat that hangs down and that children can sit on to move backwards and forwards through the air