n (context|broadcasting) A specific radio frequency or band of frequencies, usually in conjunction with a predetermined letter, number, or codeword, and allocated by international agreement.
n (context|broadcasting) A specific radio frequency or band of frequencies used for transmitting television.
n (context|storage) The portion of a storage medium, such as a track or a band, that is accessible to a given reading or writing station or head.
n (context|technic) The way in a turbinepump where the pressure is built up.