Old Testament vs Nehemiah

Old Testament and Nehemiah both are nouns.

Word	Noun	Adjective	Verb	Adverb
Old Testament	Yes	No	No	No
Nehemiah	Yes	No	No	No

Old Testament (noun)	Nehemiah (noun)
the collection of books comprising the sacred scripture of the Hebrews and recording their history as the chosen people; the first half of the Christian Bible	an Old Testament book telling how a Jewish official at the court of Artaxerxes I in 444 BC became a leader in rebuilding Jerusalem after the Babylonian Captivity