Definition of: gravity

(grav′ə·tē) noun plural ·ties
1. The accelerating tendency of bodies toward the center of the earth.
2. A similar tendency toward the center of any heavenly body.
3. Weight.
4. Gravitation.
5. The quality of being charged with or involving great interests; importance.
6. Dignified reserve; sedateness.
7. Lowness of pitch.
8. Something of grave import; a serious subject. See synonyms under WEIGHT.
—adjective Employing gravity; worked by gravity: the gravity feed of an oil burner. [<F gravité <L gravitas, -tatis heaviness <gravis heavy]