Meaning of “channel” - Learner’s Dictionary

channel

noun [ C ] us uk /ˈtʃænəl/
Extra Examples
The news channel has been accused of bias in favour of the government.They were arguing over which channel to watch.This channel is only available on cable.I was just flicking between channels.They have over thirty channels.
TELEVISION
PASSAGE

a long, narrow passage for water or other liquids to flow along:

an irrigation channel
COMMUNICATION

a way of communicating with people or getting something done:

a channel of communication
Please make your request through the proper channels.
the Channel

also the English Channel, uk us the narrow area of water between England and France

RIVER

a part of a river or sea that is deep and wide enough for ships to travel along:

a navigable channel

(Definition of “channel noun” from the Cambridge Learner’s Dictionary © Cambridge University Press)