nopeus

Noun

 * 1)  velocity vector quantity that denotes the rate of change of position with respect to time
 * 2) speed state of moving quickly or the capacity for rapid motion
 * 3) swiftness, quickness, rapidity
 * 1) swiftness, quickness, rapidity

Usage notes
In technical usage, such as in physics, is a vector corresponding to the English term, while  is a scalar quantity corresponding to the English term. In common language, the terms are used synonymously, but are not always interchangeable (e.g. in compounds). Generally speaking, is somewhat less formal. can also be used informally to refer to momentum.