What is another word for "gravity"?

Roget's Thesaurus (1911) lists these synonyms for "gravity": analytical, and, antithesis, antithetical, arroba, avoirdupois, axial, axis, azygous, baby, backbone, balance, ballast, beam, bold, boldness, breath, bring, buoyancy, burden, burdensome, burn, burthen, carat, center, centigram, central, centrality, centralization, centralize, centrally, centrical, column, command, concentrate, concentration, concentric, converge, convergence, core.