Distance travelled per unit time.

synonym: speed.

Roget 111: transience, transientness etc. adj.^†; evanescence, impermanence, fugacity [Chem], caducity^†, mortality, span; nine days' wonder, bubble, Mayfly; spurt; flash in the pan; temporary arrangement, interregnum.    velocity etc. 274; suddenness etc. 113; changeableness etc. 149.    transient, transient boarder, transient guest [U.S.].    ... show more

Roget 264: motion, movement, move; going etc. v.; unrest.    stream, flow, flux, run, course, stir; evolution; kinematics; telekinesis.    step, rate, pace, tread, stride, gait, port, footfall, cadence, carriage, velocity, angular velocity; clip, progress, locomotion; journey etc. 266; voyage etc. 267; transit etc. 270.    restlessness etc. (changeableness) 149; mobility; movableness, motive power; laws of motion; mobilization.    ... show more

Roget 274: velocity, speed, celerity; swiftness etc. adj.; rapidity, eagle speed; expedition etc. (activity) 682; pernicity^†; acceleration; haste etc. 684.    spurt, rush, dash, race, steeple chase; smart rate, lively rate, swift rate etc. adj.; rattling rate, spanking rate, strapping rate, smart pace, lively pace, swift pace, rattling pace, spanking pace, strapping pace; round pace; flying, flight.    lightning, greased lightning, light, electricity, wind; cannon ball, rocket, arrow, dart, hydrargyrum [Lat.], quicksilver; telegraph, express train; torrent.    eagle, antelope, courser, race horse, gazelle, greyhound, hare, doe, squirrel, camel bird, chickaree^†, chipmunk, hackee [U.S.], ostrich, scorcher [Slang].    Mercury, Ariel^†, Camilla^†, Harlequin.    [Measurement of velocity] log, log line; speedometer, odometer, tachometer, strobe, radar speed detector, radar trap, air speed gauge, wind sock, wind speed meter; pedometer.    ... show more

Roget 682: activity; briskness, liveliness etc. adj.; animation, life, vivacity, spirit, dash, energy; snap, vim.    nimbleness, agility; smartness, quickness etc. adj.; velocity, etc. 274; alacrity, promptitude; despatch, dispatch; expedition; haste etc. 684; punctuality etc. (early) 132.    eagerness, zeal, ardor, perfervidum aingenium [Lat.], empressement [Fr.], earnestness, intentness; abandon; vigor etc. (physical energy) 171; devotion etc. (resolution) 604; exertion etc. 686.    industry, assiduity; assiduousness etc. adj.; sedulity; laboriousness; drudgery etc. (labor) 686; painstaking, diligence; perseverance etc. 604.1; indefatigation^†; habits of business.    vigilance etc. 459; wakefulness; sleeplessness, restlessness; insomnia; pervigilium^†, insomnium^†; racketing.    movement, bustle, stir, fuss, ado, bother, pottering, fidget, fidgetiness; flurry etc. (haste) 684.    officiousness; dabbling, meddling; interference, interposition, intermeddling; tampering with, intrigue.    press of business, no sinecure, plenty to do, many irons in the fire, great doings, busy hum of men, battle of life, thick of the action.    housewife, busy bee; new brooms; sharp fellow, sharp blade; devotee, enthusiast, zealot, meddler, intermeddler, intriguer, busybody, pickthank^†; hummer, hustler, live man [U.S.], rustler [U.S.].    ... show more

Roget 684: haste, urgency; despatch, dispatch; acceleration, spurt, spirt^†, forced march, rush, dash; speed, velocity etc. 274; precipitancy, precipitation, precipitousness etc. adj.; impetuosity; brusquerie^†; hurry, drive, scramble, bustle, fuss, fidget, flurry, flutter, splutter.    ... show more

Dutch: vlugheid, snelheid
Polish: szybkość, prędkość