wave
verb [ I or T ]
wave verb [I or T] (MOVE HAND)
to raise your hand and move it from side to side as a way of greeting someone, telling someone to do something, or adding emphasis to an expression:
- wave to/at: I waved to/at him from the window but he didn't see me.
- I was waving my hand like mad but he never once looked in my direction.
- She was so annoyed she wouldn't even wave us goodbye/wave goodbye to us.
- wave your hand about/around: She waves her hands about/around a lot when she's talking.
For more details, visit the Cambridge Dictionary.