What does "ripple" mean?

Additional senses

1. 2.Hence, to scratch or tear. Holland.
2. 3.To become fretted or dimpled on the surface, as water when agitated or running over a rough bottom; to be covered with small waves or undulations, as a field of grain.
3. 4.To make a sound as of water running gently over a rough bottom, or the breaking of ripples on the shore.
4. 5.To fret or dimple, as the surface of running water; to cover with small waves or undulations; as, the breeze rippled the lake.
5. 6.The fretting or dimpling of the surface, as of running water; little curling waves.
6. 7.A little wave or undulation; a sound such as is made by little waves; as, a ripple of laughter. Ripple grass. (Bot.) See Ribwort. -- Ripple marks, a system of parallel ridges on sand, produced by wind, by the current of a steam, or by the agitation of wind waves; also (Geol.), a system of parallel ridges on the surface of a sandstone stratum.