When you wave your hand or move your arm up and down, that's waving. People often do this when saying goodbye or trying to get someone's attention.
Waving is one of those actions that people do with their arms, like a big hug without actually touching each other. You can see people waving at the beach, in a crowd, or even on TV when a news anchor says something important and wants everyone watching to take note. Some countries have special flags that wave in the wind too. When you're driving by someone standing on the side of the road, they might be holding up a sign with their hand out and waving - it's usually asking for help or directions.
To relinquish (a right etc.); to give up claim to; to forego.
Example: If you waive the right to be silent, anything you say can be used against you in a court of law.
To move from side to side; to sway.
To move back and forth repeatedly and somewhat loosely.
Example: The flag waved in the gentle breeze.
The motion of something that waves.
