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1.
distance travelled per unit time
2.
a rate (usually rapid) at which something happens
the project advanced with gratifying speed
3.
changing location rapidly
4.
the ratio of the focal length to the diameter of a (camera) lens system
5.
a central nervous system stimulant that increases energy and decreases appetite; used to treat narcolepsy and some forms of depression
'speed' - used as a verb
6.
step on it
7.
move faster
8.
travel at an excessive or illegal velocity
I got a ticket for speeding
9.
move very fast
The runner zipped past us at breakneck speed
10.
cause to move faster
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derived forms
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1. Speed / Plural
speeds
2. Speed / Past
sped
3. Speed / Third Person
speeds
4. Speed / Present Participle
speeding
5. Speed / Past
speeded
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