Gravity rhymes with:
depravity, cavity, depravity, mcavity, activity, brevity, captivity, cavity, conductivity, creativity, depravity, exclusivity, festivity, insensitivity, longevity, mcavity, nativity, negativity, proclivity, productivity, progressivity, radioactivity, reactivity, relativity, selectivity, superconductivity, velvety
Gravity sounds like:
garbed, garbett, garbutt, grabbed, graffiti, graft, grafted, graphite, gravatt, gravett, gravette, gravitate, gravitated, gravitt, grieved, griffeth, griffith, griped, gripped, groft, groped, grouped