Wave  —v. (-ving) 1 a (often foll. By to) move a hand etc. To and fro in greeting or as a signal. B move (a hand etc.) In this way. 2 a show a sinuous or sweeping motion as of a flag, tree, corn, etc. In the wind. B impart a waving motion to. 3 direct (a person) by waving (waved them away; waved them to follow). 4 express (a greeting etc.) By waving. 5 give an undulating form to (hair etc.). 6 (of hair etc.) Have such a form. —n. 1 ridge of water between two depressions. 2 long body of water curling into an arch and breaking on the shore. 3 thing compared to this, e.g. A body of persons in one of successive advancing groups. 4 gesture of waving. 5 a process of waving the hair. B undulating form produced by this. 6 temporary occurrence or increase of a condition or influence (wave of enthusiasm; heat wave). 7 physics a disturbance of the particles of esp. A fluid medium for the propagation or direction of motion, heat, light, sound, etc. B single curve in this motion. 8 undulating line or outline.  make waves colloq. Cause trouble. Wave aside dismiss as intrusive or irrelevant. Wave down wave to (a vehicle or driver) to stop. [old english]