A device or sensor that detects waves, such as sound or electromagnetic waves.

The act of waving or moving something back and forth.

इशारा करना

English Usage: She gave a wave to her friend from across the street.

Hindi Usage: उसने सड़क के पार अपने दोस्त को इशारा किया।

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

हाथ हिलाना

English Usage: He decided to wave goodbye as she left the party.

Hindi Usage: उसने पार्टी छोड़ते समय अलविदा कहने के लिए हाथ हिलाने का फैसला किया।