throat vs passage

throat and passage both are nouns.

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

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

throat (noun)	passage (noun)
the part of an animal's body that corresponds to a person's throat	a journey usually by ship
a passage resembling a throat in shape or function	the passing of a law by a legislative body
an opening in the vamp of a shoe at the instep	the act of passing something to another person
the passage to the stomach and lungs; in the front part of the neck below the chin and above the collarbone	the act of passing from one state or place to the next
	a bodily reaction of changing from one place or stage to another
	a way through or along which someone or something may pass
	a path or channel or duct through or along which something may pass
	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