Learn how to say Speed correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word speed:
1 [mass noun] the rate at which someone or something moves or operates or is able to move or operate:
we turned on to the runway and began to gather speed
an engine running at full speed
the car has a top speed of 147 mph
rapidity of movement or action:
the accident was due to excessive speed
the rate at which something happens or is done:
they were bemused by the speed of events
the course is delivered on CDROM so students can progress at their own speed
2each of the possible gear ratios of a bicycle.
US or dated each of the possible gear ratios of a motor vehicle.
3the light-gathering power or f-number of a camera lens.
the duration of a photographic exposure.
the sensitivity of photographic film to light.
4 [mass noun] informal an amphetamine drug, especially methamphetamine.
5 [mass noun] archaic success; prosperity:
wish me good speed
verb (past and past participle sped /spɛd/)
1 [no object, with adverbial of direction] move quickly:
I got into the car and home we sped
(past and past participle speeded) [no object] (of a motorist or vehicle) travel at a speed that is greater than the legal limit:
the car that crashed was speeding
(past and past participle speeded) (speed up) move or work more quickly:
you force yourself to speed up because you don’t want to keep others waiting
(past and past participle speeded) [with object] cause to move or happen more quickly:
they sought to speed up decision-making
2 [with object] archaic make prosperous or successful:
may God speed you
3 [no object] informal take or be under the influence of an amphetamine drug:
more kids than ever are speeding, tripping, and getting stoned
a car flashed past them at speed
pick up (or get up) speed
(of a vehicle) go faster; accelerate:
once out of the village, they picked up speed
the debate has picked up steam recently
up to speed
1operating at full speed or at an expected rate or level:
a noise like a jet engine coming up to speed
the manager is just getting up to speed
2 informal fully informed or up to date:
his secretary’s up to speed on IT
Old English spēd (noun), spēdan (verb), from the Germanic base of Old English spōwan ‘prosper, succeed’, a sense reflected in early usage