rate of motion: such as
(1): velocity sense 1
(2): the magnitude of a velocity irrespective of direction
b: the act or state of moving swiftly : swiftness
c: impetus
2
: swiftness or rate of performance or action : velocity sense 3a
3
a: the sensitivity of a photographic film, plate, or paper expressed numerically
b: the time during which a camera shutter is open
c: the light-gathering power of a lens or optical system
4
: a transmission gear in automotive vehicles or bicycles
—usually used in combinationa ten-speed bicycle 5 : someone or something that appeals to one's tastejust my speed 6 : methamphetaminealso : a related stimulant drug and especially an amphetamine 7 archaic : prosperity in an undertaking : success speedster ˈspēd-stər
noun
speed 2 of 2
verb
sped ˈsped
1
a: to make hastesped to her bedside
b: to go or drive at excessive or illegal speed
2
: to move, work, or take place faster : acceleratethe heart speeds up
3
aarchaic : to prosper in an undertaking
1
a: to cause to move quickly : hasten
b: to increase the speed of : accelerate
c: to wish Godspeed to
2
a: to further the success of
barchaic : to cause or help to prosper : aid