n. & v.
--n.
1. a light fast sound, as of a bullet passing through air.
2 energy, vigour.
3 esp. Brit. a (in full zip-fastener) a fastening device of two flexible strips with interlocking projections closed or opened by pulling a slide along them. b (attrib.) having a zip-fastener (zip bag).
--v. (zipped, zipping)
1. tr. & intr. (often foll. by up) fasten with a zip-fastener.
2 intr. move with zip or at high speed.
Etymology: imit.