annex vs edifice

annex and edifice both are nouns.

Word	Noun	Adjective	Verb	Adverb
annex	Yes	No	Yes	No
edifice	Yes	No	No	No

annex (noun)	edifice (noun)
an addition that extends a main building	a structure that has a roof and walls and stands more or less permanently in one place

annex (verb)	edifice (verb)
add an extra part to
take (territory) as if by conquest