cliffhanger vs competition

cliffhanger and competition both are nouns.

Word	Noun	Adjective	Verb	Adverb
cliffhanger	Yes	No	No	No
competition	Yes	No	No	No

As nouns, competition is a hypernym of cliffhanger; that is, competition is a word with a broader meaning than cliffhanger:

cliffhanger: a contest whose outcome is uncertain up to the very end
competition: an occasion on which a winner is selected from among two or more contestants

Other hypernyms of cliffhanger include contest.

cliffhanger (noun)	competition (noun)
an episode that ends in suspense	the act of competing as for profit or a prize
a contest whose outcome is uncertain up to the very end	an occasion on which a winner is selected from among two or more contestants
	the contestant you hope to defeat
	a business relation in which two parties compete to gain customers