Velocity n. : Quickness of motion; swiftness; speed; celerity; rapidity; as, the velocity of wind; the velocity of a planet or comet in its orbit or course; the velocity of a cannon ball; the velocity of light.

Velocity n. : Rate of motion; the relation of motion to time, measured by the number of units of space passed over by a moving body or point in a unit of time, usually the number of feet passed over in a second. See the Note under Speed.

Example:
What is the difference between average Velocity and instantaneous Velocity?

Taxonomy
velocity, velocity vector, Relative velocity, equation, transverse velocity, speed, Newtonian mechanics, scalar, acceleration, the origin, the distance, radial velocity, angular speed, free encyclopedia, magnitude, vector, meters per second, time t.

Defination from the web:
velocity is speed. ... The average velocity v of an object moving through a displacement (Δx) during a time interval (Δt) is described by the formula: ...