The definition of celerity is a very fast motion.
(Physics) The rate of change of velocity with respect to time.
The speed and direction of motion of a moving body. Velocity is a vector quantity.
A written message, particularly an official communication, sent with speed.
A sending forth or setting forth the execution of some object of consequence; progress.
Rash or headlong action; precipitateness:
Eagerness to do, act, go, etc. quickly
(Slang) A way of making money, esp. a dishonest way
Speed is a slang term for the street drug methamphetamine.
Find another word for swiftness. In this page you can discover 21 synonyms, antonyms, idiomatic expressions, and related words for swiftness, like: celerity, vehemence, acceleration, velocity, rapidity, dispatch, expedition, expeditiousness, fleetness, haste and hurry.