From WordNet (r) 3.0 (2006):
jet
adj 1: of the blackest black; similar to the color of jet or
coal [syn: coal-black, jet, jet-black, pitchy,
sooty]
n 1: an airplane powered by one or more jet engines [syn: jet,
jet plane, jet-propelled plane]
2: the occurrence of a sudden discharge (as of liquid) [syn:
jet, squirt, spurt, spirt]
3: a hard black form of lignite that takes a brilliant polish
and is used in jewelry or ornamentation
4: atmospheric discharges (lasting 10 msec) bursting from the
tops of giant storm clouds in blue cones that widen as they
flash upward [syn: jet, blue jet, reverse lightning]
5: street names for ketamine [syn: K, jet, super acid,
special K, honey oil, green, cat valium, super C]
6: an artificially produced flow of water [syn: fountain,
jet]
v 1: issue in a jet; come out in a jet; stream or spring forth;
"Water jetted forth"; "flames were jetting out of the
building" [syn: jet, gush]
2: fly a jet plane