n an airplane powered by one or more jet engines
n the occurrence of a sudden discharge (as of liquid)
n a hard black form of lignite that takes a brilliant polish and is used in jewelry or ornamentation
n atmospheric discharges (lasting 10 msec) bursting from the tops of giant storm clouds in blue cones that widen as they flash upward
n street names for ketamine
n an artificially produced flow of water
v issue in a jet; come out in a jet; stream or spring forth
v fly a jet plane