record vs book

record and book both are nouns.

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

As nouns, record and book are synonyms defined as:

record and book: a compilation of the known facts regarding something or someone

Other synonyms of record include record book.

As nouns, book is a hyponym of record; that is, book is a word with a more specific, narrower meaning than record:

As verbs, book is a hyponym of record; that is, book is a word with a more specific, narrower meaning than record:

record (noun)	book (noun)
an extreme attainment; the best (or worst) performance ever attested (as in a sport)	physical objects consisting of a number of pages bound together
the sum of recognized accomplishments	a number of sheets (ticket or stamps etc.) bound together on one edge
sound recording consisting of a disk with a continuous groove; used to reproduce music by rotating while a phonograph needle tracks in the groove	a written work or composition that has been published (printed on pages bound together)
a list of crimes for which an accused person has been previously convicted	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 compilation of the known facts regarding something or someone
anything (such as a document or a phonograph record or a photograph) providing permanent evidence of or information about past events	a major division of a long written composition
a document that can serve as legal evidence of a transaction	a collection of rules or prescribed standards on the basis of which decisions are made
the number of wins versus losses and ties a team has had	a collection of playing cards satisfying the rules of a card game
	a record in which commercial accounts are recorded

record (verb)	book (verb)
make a record of; set down in permanent form	engage for a performance
register electronically	record a charge in a police register
indicate a certain reading; of gauges and instruments	arrange for and reserve (something for someone else) in advance
be aware of	register in a hotel booker