Standard Lemma guide

encyclopaedia

noun · 2 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

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • Canada, UK, US: /ɪnˌsaɪ.kləˈpi(ː).di.ə/
  • Canada, UK, US: /ɛn-/
  • US: Recorded audio is listed in the source snapshot.
  • rhymes with -iːdiə
  • CMU ARPABET: IH0 N S AY2 K L AH0 P IY1 D IY0 AH0 Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
  • CMU ARPABET 2: IH0 N S AY2 K L OW0 P IY1 D IY0 AH0 Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

Commonwealth standard spelling of encyclopedia.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

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, cyclopaedia

Antonyms: none provided

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

Narrower terms: book of knowledge

History

Etymology

Borrowed from New Latin encyclopaedia; the English word is an etymologically restored spelling variant of earlier encyclopedia, q.v.

Real reading context

encyclopaedia in complete knowledge articles