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.
[ imit. ]