wave
To move back and forth repeatedly and somewhat loosely.
Example
“The flag waved in the gentle breeze.”
Other meanings
To move one's hand back and forth (generally above the shoulders) in greeting or departure.
To call attention to, or give a direction or command to, by a waving motion, as of the hand; to signify by waving; to beckon; to signal; to indicate.
“I waved goodbye from across the room.”
Example sentences
Word history
From Old English "wafian" (to wave, fluctuate, waver in mind, wonder).
Where this comes from
This definition is adapted from “wave” on Wiktionary, by its contributors; example sentences are from Tatoeba, credited to their authors above, published under CC BY-SA 4.0. This page is published under the same licence.