To move one's hand back and forth in greeting or as a signal

To flow or move in a wavy or undulating manner

लहराना

English Usage: The flag waved in the breeze.

Hindi Usage: झंडा हवा में लहराया।

A disturbance or fluctuation in a medium, often seen as a crest and trough

A gesture of raising and moving the hand

हाथ हिलाना

English Usage: He gave her a wave before leaving.

Hindi Usage: उसने जाने से पहले उसे हाथ हिलाकर कहा।