wave

verb1 of 2

to move your hand or arm to say hello or goodbye

• “Watch out for the strong waves, they can be dangerous.”Tatoeba
• “The enormous wave was sweeping away everything in its path.”Tatoeba

Sentences from Tatoeba show real usage. A word can have several meanings, so a sentence may use another one.

noun2 of 2

A moving disturbance in the level of a body of liquid; an undulation.