orchestra vs seating

orchestra and seating both are nouns.

Word	Noun	Adjective	Verb	Adverb
orchestra	Yes	No	No	No
seating	Yes	No	No	No

As nouns, seating is a hypernym of orchestra; that is, seating is a word with a broader meaning than orchestra:

Other hypernyms of orchestra include seating area, seating room, seats.

orchestra (noun)	seating (noun)
seating on the main floor in a theater	the service of ushering people to their seats
a musical organization consisting of a group of instrumentalists including string players	an area that includes places where several people can sit