Channel

noun

1. The physical confine of a river or slough, consisting of a bed and banks.

   "The water coming out of the waterwheel created a standing wave in the channel."

2. The natural or man-made deeper course through a reef, bar, bay, or any shallow body of water.

   "A channel was dredged to allow ocean-going vessels to reach the city."

3. The navigable part of a river.

   "We were careful to keep our boat in the channel."

4. A narrow body of water between two land masses.

   "The English Channel lies between France and England."

5. Something through which another thing passes; a means of conveying or transmitting.

   "The news was conveyed to us by different channels."