zero gravity

noun 0.812

anti-gravity

noun 0.753

weightlessness

noun 0.750

hypergravity

noun 0.747

gravity

noun 0.687

gravitation

noun 0.644

gravity meter

noun 0.619

gravitational field

noun 0.619

gravitational force

noun 0.605

gravitational mass

noun 0.604

supergravity

noun 0.583

quantum gravity

noun 0.581

acceleration of gravity

noun 0.581

gravimeter

noun 0.571

gravitational interaction

noun 0.561

gravitational wave

noun 0.559

gravitational radiation

noun 0.558

specific gravity

noun 0.554

centre of gravity

noun 0.548

gravitational redshift

noun 0.544

weightiness

noun 0.539

graviton

noun 0.536

gravitational collapse

noun 0.536

general relativity

noun 0.532

center of gravity

noun 0.531

space motion

noun 0.518

space flight

noun 0.517

static equilibrium

noun 0.517

inertial space

noun 0.510

space research

noun 0.506

space sickness

noun 0.505

space environment

noun 0.502

deep space

noun 0.500

buoyancy

noun 0.500