encyclopedia

noun

en·​cy·​clo·​pe·​dia in-ˌsī-klə-ˈpē-dē-ə How to pronounce encyclopedia (audio)
: a work that contains information on all branches of knowledge or treats comprehensively a particular branch of knowledge usually in articles arranged alphabetically often by subject

Examples of encyclopedia in a Sentence

Recent Examples on the Web
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The expansive lot includes a portable Magna Carta, an early scientific encyclopedia, a surgical codex, and one of the oldest surviving Sephardic Torah scrolls. Andrew Paul, Popular Science, 3 July 2025 Within the theater world, Libin was a beloved and admired raconteur, a kind of living encyclopedia of show biz lore. Greg Evans, Deadline, 29 June 2025 The Joy of Cooking Everyone should have a cookbook like this, a doorstop that is almost more encyclopedia than manual. Hayley Maitland, Vogue, 7 June 2025 In April, the foundation that runs Wikipedia disclosed that AI bots scraping their site were making the encyclopedia too costly to sustainably run. Billy Perrigo, Time, 27 May 2025 See All Example Sentences for encyclopedia

Word History

Etymology

Medieval Latin encyclopaedia course of general education, from Greek enkyklios + paideia education, child rearing, from paid-, pais child — more at few

First Known Use

1644, in the meaning defined above

Time Traveler
The first known use of encyclopedia was in 1644

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Cite this Entry

“Encyclopedia.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/encyclopedia. Accessed 21 Jul. 2025.

Kids Definition

encyclopedia

noun
en·​cy·​clo·​pe·​dia
variants also encyclopaedia
in-ˌsī-klə-ˈpēd-ē-ə
: a work that contains information on all subjects or one that covers a certain subject thoroughly usually with articles arranged alphabetically
Etymology

from Latin encyclopedia "course of general education," from Greek enkyklios "general, all-around," literally, "circular" and Greek paideia "education, child rearing"

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