tompion vs stopper

tompion and stopper both are nouns.

Word	Noun	Adjective	Verb	Adverb
tompion	Yes	No	No	No
stopper	Yes	No	Yes	No

As nouns, stopper is a hypernym of tompion; that is, stopper is a word with a broader meaning than tompion:

Other hypernyms of tompion include plug, stopple.

tompion (noun)	stopper (noun)
plug for the muzzle of a gun to keep out dust and moisture	blockage consisting of an object designed to fill a hole tightly
	(bridge) a playing card with a value sufficiently high to insure taking a trick in a particular suit
	an act so striking or impressive that the show must be delayed until the audience quiets down
	a remark to which there is no polite conversational reply

tompion (verb)	stopper (verb)
	close or secure with or as if with a stopper