channel vs passage

channel and passage both are nouns.

Word	Noun	Adjective	Verb	Adverb
channel	Yes	No	Yes	No
passage	Yes	No	No	No

As nouns, passage is a hypernym of channel; that is, passage is a word with a broader meaning than channel:

As nouns, passage is a hypernym of channel; that is, passage is a word with a broader meaning than channel:

channel: a bodily passage or tube lined with epithelial cells and conveying a secretion or other substance
passage: a path or channel or duct through or along which something may pass

Other hypernyms of channel include passageway.

channel (noun)	passage (noun)
a way of selling a company's product either directly or via distributors	a journey usually by ship
a passage for water (or other fluids) to flow through	the passing of a law by a legislative body
a television station and its programs	the act of passing something to another person
a bodily passage or tube lined with epithelial cells and conveying a secretion or other substance	the act of passing from one state or place to the next
a path over which electrical signals can pass	a bodily reaction of changing from one place or stage to another
(often plural) a means of communication or access	a way through or along which someone or something may pass
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	a path or channel or duct through or along which something may pass
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)	a section of text; particularly a section of medium length
	a short section of a musical composition
	the motion of one object relative to another

channel (verb)	passage (verb)
send from one person or place to another
direct the flow of
transmit or serve as the medium for transmission