The force that attracts a body toward the center of the earth, or toward any other physical body having mass.

गुरुत्वाकर्षण

English Usage: The gravitation of the Earth keeps us anchored to its surface.

Hindi Usage: पृथ्वी का गुरुत्वाकर्षण हमें इसकी सतह पर स्थिर रखता है।

A disturbance or oscillation that travels through space and matter.

A gesture made with the hand to signify greeting or farewell.

इशारा

English Usage: She gave a wave to her friends as she left the party.

Hindi Usage: उसने पार्टी छोड़ते समय अपने दोस्तों को इशारा किया।

To move one's hand to and fro in greeting or as a signal.

इशारा करना

English Usage: He waved at the passing cars.

Hindi Usage: उसने गुजरती कारों को इशारा किया।