championship vs approval

championship and approval both are nouns.

Word	Noun	Adjective	Verb	Adverb
championship	Yes	No	No	No
approval	Yes	No	No	No

As nouns, approval is a hypernym of championship; that is, approval is a word with a broader meaning than championship:

Other hypernyms of championship include approving, blessing.

championship (noun)	approval (noun)
the act of providing approval and support	the formal act of approving
a competition at which a champion is chosen	a message expressing a favorable opinion
the status of being a champion	a feeling of liking something or someone good
	acceptance as satisfactory