General English

General Science

  • noun a frequency range used for the transmission of radio signals
  • noun a physical connection between two points that allows data to be transmitted, e.g. a link between a central processing unit and a peripheral
  • noun a deep part of a harbour or sea passage where ships can pass, or a stretch of water between two seas


  • noun a bed of a river or stream
  • verb to send water in a particular direction


  • noun a physical connection between two points that allows data to be transmitted, e.g. a link between a CPU and a peripheral
  • verb to send signals or data via a particular path


  • A structural steel member shaped like a "U."
  • In glazing, a U-shaped member used to hold a pane or panel.
  • The suspension system for a suspended ceiling.
  • A pathfor the transmission and reception of electromagnetic signals between two or more points.


  • A path along which information is transmitted. For instance, a fiber-optic link carrying data between nodes of a network, or a bus between computer devices. Also called transmission channel.
  • A frequency, or band of frequencies, assigned to a particular carrier or for a specific purpose. For example, the band of radio frequencies assigned to a TV broadcast station. Also called frequency channel.
  • In an audio component, a designated signal path. For instance, a surround sound receiver may provide, for instance, a left front channel, a left rear channel, a center channel, a right front channel, a right rear channel, and that which drives a subwoofer.
  • In a field effect transistor, the electrical path between the source and the drain.
  • synonymcircuit


  • (written as Channel)
    A chart formation in which the graph representing the value of a currency can be marked by two straight lines, similar to a "channel" created by the flow of water. The movement of a currency value out of a previous channel is interpreted by some foreign exchange technical analysts to mean an upcoming change in trend, indicating significant future increases or decreases in value.

Information & Library Science

  • noun the spoken, written or electronic means by which something is passed on
  • noun a major interest area on the Internet that is easily accessible.
  • noun one layer of an image that can be worked on separately or which can be used to create special effects

Media Studies

  • noun a television or radio station which broadcasts on a particular band of radio frequencies
  • noun a band of frequencies set aside for a particular purpose, such as broadcasting for a television or radio station


  • noun a stretch of deep water through an area of shallow water
  • noun a natural or man-made ditch or watercourse
  • verb to make something move in a specific direction

Origin & History of “channel”

Channel and canal are ultimately the same word. their common ancestor was Latin canālis ‘groove, channel’, a derivative of canna ‘pipe’ (source of English cane). This passed into Old French as chanel, which English took over as channel. But then in the 15th century English acquired canal, either directly from Latin, or from French canal, which was itself remodelled on the Latin form – it is not clear which.