adjective

1. moving or capable of moving with great speed; rapid; fast
2. coming, happening, or done quickly or suddenly
3. acting or responding quickly; prompt; ready

Etymology: ME < OE < IE *sweip- < base *swei-, to bend, turn > swathe, swoop

adverb

noun

1. a cylinder in a carding machine
2. an expanding reel used to hold skeins of silk, etc. that are being wound off
3. any of a large family (Apodidae, order Apodiformes) of aerial-feeding, insectivorous, swift-flying, swallowlike birds with long, stiff wings and a small, weak bill, as the chimney swift
4. any of several swift-moving North American iguanas (genera Sceloporus and Uta) living esp. in arid or desert regions
5. a small fox (Vulpes velox) of the plains of W U.S. and S Canada
   in full swift fox