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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Several information experts said that Mr. Trump’s executive orders have authoritarian overtones, reminiscent of when Russia cloned Wikipedia, an online encyclopedia, and stripped it of unflattering material. Tiffany Hsu, New York Times, 5 Apr. 2025 Wikipedia is paying the price for the AI boom: The online encyclopedia is grappling with rising costs from bots scraping its articles to train AI models, which is straining the site’s bandwidth. Michael Kan, PC Magazine, 2 Apr. 2025 For over 20 years, Wikipedia has been a free encyclopedia for everyone on the internet. Jibin Joseph, PCMAG, 11 Mar. 2025 While a recession indicator entry was added to the digital culture encyclopedia Know Your Meme only this month, the jokes have tracked back to at least 2019. Alex Harring, CNBC, 27 Mar. 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 29 Apr. 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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