the act or state of moving swiftly; swiftness
rate of motion; specif the magnitude of a velocity irrespective of direction
power of motion; impetus
rate of performance or execution
reading speed
the sensitivity to light of a photographic film, plate, or paper expressed numerically
the power of a lens or optical system, e.g. in a camera, to admit more or less light
the duration of a photographic exposure
each of the gear ratios of a bicycle
slang methamphetamine, or any of several chemically related stimulant amphetamine drugs
archaic good fortune; success
at speed
while moving fast
up to speed
having all the relevant information
[Old English spēd]