Encyclopedia (noun)

A reference work containing articles on a wide range of subjects, typically arranged alphabetically.

Origin:

Late 17th century: from modern latin encyclopaedia, from greek enkuklios paideia "general education", from en- "in" + kuklios "circular" + paideia "education".

Examples:

1. He was reading an encyclopedia about ancient history.
2. The children were looking up information in the encyclopedia.
3. The library had an extensive collection of encyclopedias.
4. The website was a digital encyclopedia of world cultures.
5. The encyclopedia provided information about everything from A to Z.