speed

Definitions


[spiːd], (Noun)

Definitions:
- the rate at which someone or something moves or operates or is able to move or operate
(e.g: we turned on to the runway and began to gather speed)

- each of the possible gear ratios of a bicycle or motor vehicle

- the light-gathering power or f-number of a camera lens

- an amphetamine drug, especially methamphetamine

- success; prosperity
(e.g: wish me good speed)


Phrases:
- at speed
- pick up speed
- up to speed

Origin:
Old English spēd (noun), spēdan (verb), from the Germanic base of Old English spōwan ‘prosper, succeed’, a sense reflected in early usage


[spiːd], (Verb)

Definitions:
- move quickly
(e.g: I got into the car and home we sped)

- make prosperous or successful
(e.g: may God speed you)

- take or be under the influence of an amphetamine drug
(e.g: more kids than ever are speeding, tripping, and getting stoned)


Phrases:
- at speed
- pick up speed
- up to speed

Origin:
Old English spēd (noun), spēdan (verb), from the Germanic base of Old English spōwan ‘prosper, succeed’, a sense reflected in early usage




definition by Oxford Dictionaries