n.

1. a path over which electrical signals can pass;
   transmission channel
   
   • a channel is typically what you rent from a telephone company
2. a passage for water (or other fluids) to flow through
   
   • the fields were crossed with irrigation channels
   • gutters carried off the rainwater into a series of channels under the street
3. a long narrow furrow cut either by a natural process (such as erosion) or by a tool (as e.g. a groove in a phonograph record);
   groove
4. a deep and relatively narrow body of water (as in a river or a harbor or a strait linking two larger bodies) that allows the best passage for vessels
   
   • the ship went aground in the channel
5. (often plural) a means of communication or access;
   communication channel, line
   
   • it must go through official channels
   • lines of communication were set up between the two firms
6. a bodily passage or tube lined with epithelial cells and conveying a secretion or other substance;
   duct, epithelial duct, canal
   
   • the tear duct was obstructed
   • the alimentary canal
   • poison is released through a channel in the snake's fangs
7. a television station and its programs;
   television channel, TV channel
   
   • a satellite TV channel
   • surfing through the channels
   • they offer more than one hundred channels
8. a way of selling a company's product either directly or via distributors;
   distribution channel
   
   • possible distribution channels are wholesalers or small retailers or retail chains or direct mailers or your own stores

v.

1. transmit or serve as the medium for transmission;
   conduct, transmit, convey, carry
   
   • Sound carries well over water
   • The airwaves carry the sound
   • Many metals conduct heat
2. direct the flow of;
   canalize, canalise
   
   • channel information towards a broad audience
3. send from one person or place to another;
   transmit, transfer, transport, channelize, channelise
   
   • transmit a message