Book of Tobit vs book

Book of Tobit and book both are nouns.

Word	Noun	Adjective	Verb	Adverb
Book of Tobit	Yes	No	No	No
book	Yes	No	Yes	No

Book of Tobit (noun)	book (noun)
an Apocryphal book that was a popular novel for several centuries	physical objects consisting of a number of pages bound together
	a number of sheets (ticket or stamps etc.) bound together on one edge
	a written work or composition that has been published (printed on pages bound together)
	a written version of a play or other dramatic composition; used in preparing for a performance
	a compilation of the known facts regarding something or someone
	a major division of a long written composition
	a collection of rules or prescribed standards on the basis of which decisions are made
	a collection of playing cards satisfying the rules of a card game
	a record in which commercial accounts are recorded

Book of Tobit (verb)	book (verb)
	engage for a performance
	record a charge in a police register
	arrange for and reserve (something for someone else) in advance
	register in a hotel booker