Dictionary

n.
1.distance travelled per unit time
2.a rate (usually rapid) at which something happens
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 speed v.
1.step on it
2.move faster
3.travel at an excessive or illegal velocity
4.move very fast
5.cause to move faster

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