hall vs exhibition area

hall and exhibition area both are nouns.

Word	Noun	Adjective	Verb	Adverb
hall	Yes	No	No	No
exhibition area	Yes	No	No	No

As nouns, exhibition area is a hyponym of hall; that is, exhibition area is a word with a more specific, narrower meaning than hall:

Other hyponyms of hall include beer hall, concert hall, exhibition hall, floor, great hall.

hall (noun)	exhibition area (noun)
a large building for meetings or entertainment	a large hall or area for holding exhibitions
a large room for gatherings, receiving guests, or entertainment
an interior passage or corridor onto which rooms open
a college or university building containing living quarters for students
a large entrance or reception room or area
the large room of a manor or castle
a large and imposing house
a large building used by a college or university for teaching or research