rule book vs collection

rule book and collection both are nouns.

Word	Noun	Adjective	Verb	Adverb
rule book	Yes	No	No	No
collection	Yes	No	No	No

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

rule book: a collection of rules or prescribed standards on the basis of which decisions are made
collection: several things grouped together or considered as a whole

Other hypernyms of rule book include accumulation, aggregation, assemblage.

rule book (noun)	collection (noun)
a collection of rules or prescribed standards on the basis of which decisions are made	the act of gathering something together
	a publication containing a variety of works
	request for a sum of money
	several things grouped together or considered as a whole