hall vs ceiling

hall and ceiling both are nouns.

Word	Noun	Adjective	Verb	Adverb
hall	Yes	No	No	No
ceiling	Yes	No	No	No

hall (noun)	ceiling (noun)
a large building for meetings or entertainment	the overhead upper surface of a covered space
a large room for gatherings, receiving guests, or entertainment	(meteorology) altitude of the lowest layer of clouds
an interior passage or corridor onto which rooms open	maximum altitude at which a plane can fly (under specified conditions)
a college or university building containing living quarters for students	an upper limit on what is allowed
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