the act of moving back and forth

a gesture or signal made by moving the hand

इशारा

English Usage: He gave a friendly wave to his friends across the street.

Hindi Usage: उसने सड़क पर अपने दोस्तों को एक दोस्ताना इशारा किया।

to spread or promote

फैलाना

English Usage: The organization aims to propagate awareness about environmental issues.

Hindi Usage: संस्थान का लक्ष्य पर्यावरणीय मुद्दों के बारे में जागरूकता फैलाना है।