speed

Meaning

1. The state of moving quickly or the capacity for rapid motion.
2. The rate of motion or action, specifically the magnitude of the velocity; the rate distance is traversed in a given time.
3. The sensitivity to light of film, plates or sensor.
4. The duration of exposure, the time during which a camera shutter is open (shutter speed).
5. The largest size of the lens opening at which a lens can be used.
6. The ratio of the focal length to the diameter of a photographic objective.
7. (slang) Amphetamine or any amphetamine-based drug (especially methamphetamine) used as a stimulant, especially illegally.
8. Luck, success, prosperity.
9. (slang) Personal preference.
10. A third-order measure of derivative price sensitivity, expressed as the rate of change of gamma with respect to changes in the underlying asset price.

velocity

rush along

belt along

run quickly

pelt along

cannonball along

stop number

travel rapidly

hurry up

hurtle

bucket along

go swiftly

focal ratio

f number

top speed

zoom along

be prosperous

be wealthy

dispatch rider

go very fast

methamphetamine

pick up speed

rapid motion

skim over

urge on

very fast

photographic sensitivity

pep-pill

photosensibility

engine power

make hurry

step on the accelerator

veloctiy

scurry about

great velocity

quicknees

Hunt

mental quickness

peculiar velocity

critical speed

light sensitivity

prepayment speed

breakdown speed

despatch rider

whirling speed

terminal-velocity

be in a hurry

bustle about

critical velocity

decision speed

Frequency

Pronounced as (IPA)

/spiːd/

From Middle English spede (“prosperity, good luck, quickness, success”), from Old English spēd (“success”), from Proto-West Germanic *spōdi (“prosperity, success”), from Proto-West Germanic *spōan, from Proto-Germanic *spōaną (“to prosper, succeed, be happy”), from Proto-Indo-European *speh₁- (“to prosper, turn out well”). Cognate with Scots spede, speid (“success, quickness, speed”), Dutch spoed (“haste; speed”), German Low German Spood (“haste; speed; eagerness; success”), German Sput (“progress, acceleration, haste”). Related also to Old English spōwan (“to be successful, succeed”), Albanian shpejt (“to speed, to hurry”) and Russian спеши́ть (spešítʹ, “to hurry”), Latin spēs (“hope, expectation”), spērō (“hope”, verb), perhaps also to Ancient Greek σπεύδω (speúdō, “to urge on, hasten, press on”).