selection vs passage

selection and passage both are nouns.

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

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

selection (noun)	passage (noun)
the act of choosing or selecting	a journey usually by ship
the person or thing chosen or selected	the passing of a law by a legislative body
a passage selected from a larger work	the act of passing something to another person
an assortment of things from which a choice can be made	the act of passing from one state or place to the next
a natural process resulting in the evolution of organisms best adapted to the environment	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