Nahum vs Book of Nahum

Nahum and Book of Nahum both are nouns.

Word	Noun	Adjective	Verb	Adverb
Nahum	Yes	No	No	No
Book of Nahum	Yes	No	No	No

As nouns, Nahum and Book of Nahum are synonyms defined as:

Nahum and Book of Nahum: an Old Testament book telling Nahum's prophecy of the fall of Nineveh

Nahum (noun)	Book of Nahum (noun)
an Old Testament book telling Nahum's prophecy of the fall of Nineveh	an Old Testament book telling Nahum's prophecy of the fall of Nineveh
a Hebrew minor prophet of the 7th century BC