fact vs record book

fact and record book both are nouns.

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

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

fact: a statement or assertion of verified information about something that is the case or has happened
record book: a compilation of the known facts regarding something or someone

Other hyponyms of fact include book, record, basics, rudiments, index, index number, indicant, indicator.

fact (noun)	record book (noun)
a piece of information about circumstances that exist or events that have occurred	a compilation of the known facts regarding something or someone
a concept whose truth can be proved
a statement or assertion of verified information about something that is the case or has happened
an event known to have happened or something known to have existed