bottleneck vs stymy

bottleneck and stymy both are nouns.

Word	Noun	Adjective	Verb	Adverb
bottleneck	Yes	No	Yes	No
stymy	Yes	No	Yes	No

As verbs, stymy is a hypernym of bottleneck; that is, stymy is a word with a broader meaning than bottleneck:

Other hypernyms of bottleneck include block, blockade, embarrass, hinder, obstruct, stymie.

bottleneck (noun)	stymy (noun)
the narrow part of a bottle near the top	a thwarting and distressing situation
a narrowing that reduces the flow through a channel	a situation in golf where an opponent's ball blocks the line between your ball and the hole

bottleneck (verb)	stymy (verb)
become narrow, like a bottleneck	hinder or prevent the progress or accomplishment of
slow down or impede by creating an obstruction