Meaning of GRAVITY in English

[grav.i.ty] n, pl -ties often attrib [MF or L; MF gravite, fr. L gravitat-, gravitas, fr. gravis] (1509) 1 a: dignity or sobriety of bearing b: importance, significance; esp: seriousness c: a serious situation or problem

2: weight 3 a (1): the gravitational attraction of the mass of the earth, the moon, or a planet for bodies at or near its surface (2): a fundamental physical force that is responsible for interactions which occur because of mass between particles, between aggregations of matter (as stars and planets), and between particles (as photons) and aggregations of matter, that is 1E39 times weaker than the strong force, and that extends over infinite distances but is dominant over macroscopic distances esp. between aggregations of matter--called also gravitation, gravitational force--compare electromagnetism 2a, strong force, weak force b: acceleration of gravity c: specific gravity

Merriam-Webster English vocab.      Английский словарь Merriam Webster.