NIMBY vs contestant

NIMBY and contestant both are nouns.

Word	Noun	Adjective	Verb	Adverb
NIMBY	Yes	No	No	No
contestant	Yes	No	No	No

As nouns, contestant is a hypernym of NIMBY; that is, contestant is a word with a broader meaning than NIMBY:

NIMBY: someone who objects to siting something in their own neighborhood but does not object to it being sited elsewhere; an acronym for not in my backyard
contestant: a person who dissents from some established policy

Other hypernyms of NIMBY include dissenter, dissident, objector, protester.

NIMBY (noun)	contestant (noun)
someone who objects to siting something in their own neighborhood but does not object to it being sited elsewhere; an acronym for not in my backyard	a person who participates in competitions
	a person who dissents from some established policy