Cases of word usage

1) with the edge outwards or forwards (edgeways)

2) to swing backwards and forwards as the pendulum of a clock does; to change between extremes of opinions etc (oscillate)

3) to move (something) backwards and forwards on the surface of another (rub)

4) to bend the body forwards and downwards; to lower oneself morally by doing something bad (stoop)

5) (to cause something having one end or one side fixed and the other free) to move forwards an backwards or in a curve; to turn quickly (swing)

6) a game for two or four players who hit a ball with a racket backwards and forwards across a net (tennies)

7) (to cause something) to move quickly and continuously backwards and forwards (vibrate)