kHz - kilohertz, the frequency of a radio carrier wave measured
in thousands of cycles per second. 1 kHz = 1,000 Hertz.
KIAS - knots indicated airspeed.
knot (kt) - one nautical mile per hour (never one knot per
hour), the standard unit of aviation speed measurement. One knot
equals 1.1515 mph; one nautical mile equals 6,080 feet.
kV, kW - kilovolt, kilowatt.