gag rule vs guillotine

gag rule and guillotine both are nouns.

Word	Noun	Adjective	Verb	Adverb
gag rule	Yes	No	No	No
guillotine	Yes	No	Yes	No

As nouns, guillotine is a hyponym of gag rule; that is, guillotine is a word with a more specific, narrower meaning than gag rule:

Other hyponyms of gag rule include closure by compartment.

gag rule (noun)	guillotine (noun)
a rule for limiting or ending debate in a deliberative body	instrument of execution that consists of a weighted blade between two vertical poles; used for beheading people
	closure imposed on the debate of specific sections of a bill

gag rule (verb)	guillotine (verb)
	kill by cutting the head off with a guillotine