library vs accumulation

library and accumulation both are nouns.

Word	Noun	Adjective	Verb	Adverb
library	Yes	No	No	No
accumulation	Yes	No	No	No

As nouns, accumulation is a hypernym of library; that is, accumulation is a word with a broader meaning than library:

library: a collection of literary documents or records kept for reference or borrowing
accumulation: several things grouped together or considered as a whole

Other hypernyms of library include aggregation, assemblage, collection.

As nouns, accumulation is a hypernym of library; that is, accumulation is a word with a broader meaning than library:

library: (computing) a collection of standard programs and subroutines that are stored and available for immediate use
accumulation: several things grouped together or considered as a whole

Other hypernyms of library include aggregation, assemblage, collection.

library (noun)	accumulation (noun)
a depository built to contain books and other materials for reading and study	the act of accumulating
a room where books are kept	several things grouped together or considered as a whole
a building that houses a collection of books and other materials	(finance) profits that are not paid out as dividends but are added to the capital base of the corporation
a collection of literary documents or records kept for reference or borrowing	an increase by natural growth or addition
(computing) a collection of standard programs and subroutines that are stored and available for immediate use