stopple vs stoppage

stopple and stoppage both are nouns.

Word	Noun	Adjective	Verb	Adverb
stopple	Yes	No	Yes	No
stoppage	Yes	No	No	No

As nouns, stoppage is a hypernym of stopple; that is, stoppage is a word with a broader meaning than stopple:

Other hypernyms of stopple include block, blockage, closure, occlusion, stop.

stopple (noun)	stoppage (noun)
blockage consisting of an object designed to fill a hole tightly	the act of stopping something
	an obstruction in a pipe or tube
	the state of inactivity following an interruption

stopple (verb)	stoppage (verb)
close or secure with or as if with a stopper