narrowing vs configuration

narrowing and configuration both are nouns.

Word	Noun	Adjective	Verb	Adverb
narrowing	Yes	Yes	No	No
configuration	Yes	No	No	No

As nouns, configuration is a hypernym of narrowing; that is, configuration is a word with a broader meaning than narrowing:

Other hypernyms of narrowing include conformation, contour, form, shape.

narrowing (noun)	configuration (noun)
the act of making something narrower	any spatial attributes (especially as defined by outline)
an instance of becoming narrow	an arrangement of parts or elements
a decrease in width

narrowing (adjective)	configuration (adjective)
(of circumstances) tending to constrict freedom
becoming gradually narrower