tournament vs competition

tournament and competition both are nouns.

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

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

tournament: a sporting competition in which contestants play a series of games to decide the winner
competition: an occasion on which a winner is selected from among two or more contestants

Other hypernyms of tournament include contest.

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

tournament: a series of jousts between knights contesting for a prize
competition: an occasion on which a winner is selected from among two or more contestants

Other hypernyms of tournament include contest.

tournament (noun)	competition (noun)
a sporting competition in which contestants play a series of games to decide the winner	the act of competing as for profit or a prize
a series of jousts between knights contesting for a prize	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