acceleration

velocity, speed, celerity; swiftness; rapidity, eagle speed; expedition (activity) [more]; pernicity; acceleration; haste., spurt, rush, dash, race, steeple chase; smart rate, lively rate, swift rate; rattling rate, spanking rate, strapping rate, smart pace, lively pace, swift pace, rattling pace, spanking pace, straping pace; round pace; flying, flight., lightning, light, electricity, wind; cannon ball, rocket, arrow, dart, hydrargyrum, quicksilver; telegraph, express train; torrent; Mach; ludicrous speed., eagle, antelope, courser, race horse, gazelle, greyhound, hare, doe, squirrel, camel bird, chickaree, chipmunk, hackee [U.S.], ostrich, scorcher., Mercury, Ariel, Camilla, Harlequin., [Measurement of velocity] log, log line.

move quickly, trip, fisk; speed, hie, hasten, post, spank, scuttle; scud, scuddle; scour, scour the plain; scamper; run like mad, beat it; fly, race, run a race, cut away, shot, tear, whisk, sweep, skim, brush; cut along, bowl along; scorch; rush (be violent); dash on, dash off, dash forward; bolt; trot, gallop, amble, troll, bound, flit, spring, dart, boom; march in quick time, march in double time; ride hard, get over the ground., hurry (hasten); accelerate, put on; quicken; quicken one's pace, mend one's pace; clap spurs to one's horse; make haste, make rapid strides, make forced marches, make the best of one's way; put one's best leg foremost, stir one's stumps, wing one's way, set off at a score; carry sail, crowd sail; go off like a shot, go like a shot, go ahead, gain ground; outstrip the wind, fly on the wings of the wind., keep up with, keep pace with; outstrip; outmarch.

fast, speedy, swift, rapid, quick, fleet; aliped; nimble, agile, expeditious; express; active; flying, galloping; light footed, nimble footed; winged, eagle winged, mercurial, electric, telegraphic; light-legged, light of heel; swift as an arrow; quick as lightning, quick as a thought.

swiftly; with speed; apace; at a great rate, at full speed, at railway speed; full drive, full gallop; posthaste, in full sail, tantivy; trippingly; instantaneously., under press of sail, under press of canvas, under press of sail and steam; velis et remis, on eagle's wing, in double quick time; with rapid strides, with giant strides; a pas de geant; in seven league boots; whip and spur; ventre a terre; as fast as one's legs will carry one, as fast as one's heels will carry one; as fast as one can lay legs to the ground, at the top of one's speed; by leaps and bounds; with haste.