narrowing vs chokepoint

narrowing and chokepoint both are nouns.

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

As nouns, chokepoint is a hyponym of narrowing; that is, chokepoint is a word with a more specific, narrower meaning than narrowing:

Other hyponyms of narrowing include coarctation, taper, bottleneck, constriction.

narrowing (noun)	chokepoint (noun)
the act of making something narrower	a point of congestion or blockage
an instance of becoming narrow	a narrowing that reduces the flow through a channel
a decrease in width

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