filibuster vs legislator

filibuster and legislator both are nouns.

Word	Noun	Adjective	Verb	Adverb
filibuster	Yes	No	Yes	No
legislator	Yes	No	No	No

As nouns, legislator is a hypernym of filibuster; that is, legislator is a word with a broader meaning than filibuster:

filibuster: a legislator who gives long speeches in an effort to delay or obstruct legislation that he (or she) opposes
legislator: someone who makes or enacts laws

Other hypernyms of filibuster include delayer.

filibuster (noun)	legislator (noun)
(law) a tactic for delaying or obstructing legislation by making long speeches	someone who makes or enacts laws
a legislator who gives long speeches in an effort to delay or obstruct legislation that he (or she) opposes

filibuster (verb)	legislator (verb)
obstruct deliberately by delaying