Standard Lemma guide

cyclopaedia

noun · 3 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • UK: /saɪk.ləʊˈpiːd.i.ə/
  • rhymes with -iːdiə

1

noun

Meaning 1

The circle or compass of the arts and sciences (originally, of the seven so-called liberal arts and sciences); circle of human knowledge.

Definition source: English Wiktionary via Wiktextract

Usage: archaic

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

An encyclopedia.

Definition source: English Wiktionary via Wiktextract

Usage: archaic

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

a reference work (often in several volumes) containing articles on various topics (often arranged in alphabetical order) dealing with the entire range of human knowledge or with some particular specialty

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: encyclopedia, cyclopedia, encyclopaedia

Antonyms: none provided

Broader terms: reference book, reference, reference work, book of facts

Narrower terms: book of knowledge

History

Etymology

From Ancient Greek κύκλος (kúklos, “circle”) + παιδεία (paideía, “child-rearing, education”). See cycle, and compare encyclopedia.

Real reading context

cyclopaedia in complete knowledge articles