homecourt advantage vs vantage

homecourt advantage and vantage both are nouns.

Word	Noun	Adjective	Verb	Adverb
homecourt advantage	Yes	No	No	No
vantage	Yes	No	No	No

As nouns, vantage is a hypernym of homecourt advantage; that is, vantage is a word with a broader meaning than homecourt advantage:

homecourt advantage: the advantage of playing on your home court in front of fans who are rooting for you
vantage: the quality of having a superior or more favorable position

Other hypernyms of homecourt advantage include advantage.

homecourt advantage (noun)	vantage (noun)
the advantage of playing on your home court in front of fans who are rooting for you	the quality of having a superior or more favorable position
	place or situation affording some advantage (especially a comprehensive view or commanding perspective)