Ezra vs Old Testament

Ezra and Old Testament both are nouns.

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

Ezra (noun)	Old Testament (noun)
an Old Testament book telling of a rabbi's efforts in the 5th century BC to reconstitute Jewish law and worship in Jerusalem after the Babylonian Captivity	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
a Jewish priest and scribe sent by the Persian king to restore Jewish law and worship in Jerusalem