Synonym: accelerate, amphetamine, belt along, bucket along, cannonball along, f number, fastness, focal ratio, hasten, hie, hotfoot, hurry, hurrying, pelt along, pep pill, quicken, race, rush, rush along, speed up, speeding, stop number, swiftness, travel rapidly, upper, velocity, zip. Similar words: speed up, at full speed, peer, peel, weed, need, exceed, feed on. Meaning: [spɪːd] 
n. 1. distance travelled per unit time 2. a rate (usually rapid) at which something happens 3. changing location rapidly 4. the ratio of the focal length to the diameter of a (camera) lens system 5. a central nervous system stimulant that increases energy and decreases appetite; used to treat narcolepsy and some forms of depression. v. 1. step on it 2. move faster 3. travel at an excessive or illegal velocity 4. move very fast 5. cause to move faster.
n. 1. distance travelled per unit time 2. a rate (usually rapid) at which something happens 3. changing location rapidly 4. the ratio of the focal length to the diameter of a (camera) lens system 5. a central nervous system stimulant that increases energy and decreases appetite; used to treat narcolepsy and some forms of depression. v. 1. step on it 2. move faster 3. travel at an excessive or illegal velocity 4. move very fast 5. cause to move faster. 
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31. What impressed him most was their speed.
32. We've kept up a fairly constant speed.
33. He was travelling at a speed of 90 mph.
34. The tortoise crept along at a very slow speed.
35. The car has a maximum speed of 120 mph.
36. The engine is very noisy at high speed.
37. A ship's speed is measured in knots.
38. The aircraft rose with unnatural speed on take-off.
39. The kids were pushing the roundabout at a giddy speed.
40. Motorists can be fined on the spot for exceeding speed limits.
41. Make sure you keep within the new lower speed limit.
42. With her speed and agility, Cage cut out all her competitors in the hurdle race.
43. He is not only the speed, but also lies in whether we can continue; forward lies not only in speed, but also lies in whether we can maintain the correct direction.
44. The country girl stood by the road, mesmerized at the speed of cars racing past.
45. We arranged for some home tutoring to get him up to speed with the other children in his class.
46. If you're a busy person, looking to meet several potential mates at the same event, speed dating could be for you.
47. Running a kitchen involves a great deal of discipline and speed.
48. The energy an animal uses is in direct relation to speed and body mass.
49. It isn't always easy for the police to enforce speed limits.
50. Such speed of travel was unimaginable before the railway age.
51. On the descents, cyclists spin past cars, freewheeling downhill at tremendous speed.
52. The force of friction affects the speed at which spacecraft can re-enter the earth's atmosphere.
53. The frequency of accidents on that road made the council lower the speed limit.
54. I hacked up a loop program to test the computer's processing speed.
55. The speed is restricted to 50 kilometers an hour here.
56. He redoubled his speed when he saw the finishing line ahead.
57. Your metabolic rate is the speed at which your body transforms food into energy.
57. Sentencedict.com try its best to collect and make good sentences.
58. Increasing your walking speed will help to exercise your heart.
59. As the boat picked up speed, the coastline receded into the distance until finally it became invisible.
60. This new design will offer undreamed-of levels of comfort, safety and speed.