speed of light

noun 0.784

speed

noun 0.718

wind speed

noun 0.683

velocity

noun 0.671

lightspeed

noun 0.666

sound wave

noun 0.652

speed parameter

noun 0.648

high speed

noun 0.628

airspeed

noun 0.618

sound

noun 0.618

speed limit

noun 0.615

sound energy

noun 0.611

supersonic

noun 0.609

wire speed

noun 0.600

sound barrier

noun 0.597

group velocity

noun 0.586

speediness

noun 0.572

muzzle velocity

noun 0.558

speeding

noun 0.556

space velocity

noun 0.555

second sound

noun 0.555

heart sound

noun 0.555

loudness

noun 0.551

wavelength

noun 0.547

speedometer

noun 0.539

phase velocity

noun 0.538

sound effect

noun 0.538

frequency

noun 0.529

fast

noun 0.529

swiftness

noun 0.526

subsonic

noun 0.523

overspeed

noun 0.523

infrasound

noun 0.519

faster

noun 0.516

superspeed

noun 0.515

sound art

noun 0.513

audio frequency

noun 0.509

sound law

noun 0.508

metre per second

noun 0.503

terminal velocity

noun 0.503

slow motion

noun 0.502

acoustic

noun 0.500