journal vs book

journal and book both are nouns.

Word	Noun	Adjective	Verb	Adverb
journal	Yes	No	No	No
book	Yes	No	Yes	No

As nouns, book is a hypernym of journal; that is, book is a word with a broader meaning than journal:

Other hypernyms of journal include volume.

As nouns, book is a hypernym of journal; that is, book is a word with a broader meaning than journal:

Other hypernyms of journal include account book, book of account, ledger, leger.

journal (noun)	book (noun)
the part of the axle contained by a bearing	physical objects consisting of a number of pages bound together
a record book as a physical object	a number of sheets (ticket or stamps etc.) bound together on one edge
a periodical dedicated to a particular subject	a written work or composition that has been published (printed on pages bound together)
a daily written record of (usually personal) experiences and observations	a written version of a play or other dramatic composition; used in preparing for a performance
a ledger in which transactions have been recorded as they occurred	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

journal (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