encyclopedia
C1Formal, Academic, Neutral
Definition
Meaning
A comprehensive reference work containing articles on a wide range of subjects or on numerous aspects of a single field, usually arranged alphabetically.
Can metaphorically refer to any source of extensive, detailed knowledge on a subject; a person or thing possessing or representing vast information.
Linguistics
Semantic Notes
The term emphasizes comprehensiveness and authority. A 'desk encyclopedia' is a concise version. Historically linked to 'encyclopedic' meaning possessing wide-ranging knowledge.
Dialectal Variation
British vs American Usage
Differences
The primary difference is the spelling. British English strongly prefers 'encyclopaedia', though 'encyclopedia' is also used, especially in modern publishing. American English exclusively uses 'encyclopedia'. The shortened form 'encyclo' is extremely rare in both.
Connotations
Identical. Connotes scholarly depth, authority, and completeness.
Frequency
Comparatively high and similar in frequency in both varieties, but the spelling variant impacts corpus counts.
Vocabulary
Collocations
Grammar
Valency Patterns
consult/look up something in an encyclopediaan encyclopedia of/on/about (a subject)an encyclopedia entry/article onVocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “A walking encyclopedia (for a very knowledgeable person)”
Usage
Context Usage
Business
Rare. May appear metaphorically: 'His report was an encyclopedia of market data.'
Academic
Common. Refers to both physical/digital resources and the concept of comprehensive knowledge: 'Cite the entry from the Stanford Encyclopedia of Philosophy.'
Everyday
Common, though often replaced by 'Wikipedia' as a generic term. 'I used to have a whole set of encyclopedias on the shelf.'
Technical
Specific in library/information science (e.g., 'encyclopedic classification').
Examples
By Part of Speech
adjective
British English
- She has an encyclopaedic knowledge of British birds.
American English
- She has an encyclopedic knowledge of Civil War battles.
Examples
By CEFR Level
- I found a picture of a lion in the encyclopedia.
- We have an old encyclopedia at home.
- Before the internet, people used encyclopedias to research school projects.
- The encyclopedia article explained the history of Rome clearly.
- Wikipedia has largely supplanted the traditional printed encyclopedia as a first port of call for general information.
- His mind was a veritable encyclopedia of obscure film trivia.
- The judge's ruling was so thorough it was deemed an encyclopedia of copyright law jurisprudence.
- Critics praised the biographer's encyclopedic grasp of her subject's milieu and correspondence.
Learning
Memory Aids
Mnemonic
Think: 'ENcircle CYCLOpedic knowledge PEDIA' – it encircles (encompasses) all-round (cyclo-) knowledge for education (pedia, like pediatrician for children's health).
Conceptual Metaphor
KNOWLEDGE IS A CONTAINER / A COMPREHENSIVE COLLECTION. Also, A PERSON IS AN ENCYCLOPEDIA (for a knowledgable individual).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- The word 'энциклопедия' is a direct cognate, so no semantic trap. The main trap is overusing the formal 'энциклопедия' when a simpler word like 'справочник' (reference book) would suffice in Russian.
Common Mistakes
- Misspelling: 'encyclopeadia', 'encyclopeedia'. Confusing with 'encyclical' (a papal letter). Using it as a countable noun for a single article: 'I read an encyclopedia about sharks.' (Incorrect; should be 'an encyclopedia entry/article about sharks.')
Practice
Quiz
Which of the following is the LEAST likely characteristic of a traditional encyclopedia?
FAQ
Frequently Asked Questions
Both are correct, but they are regional variants. 'Encyclopaedia' is the classic British spelling, while 'encyclopedia' is the standard American spelling and is increasingly common in British English.
A dictionary primarily defines words and their uses, focusing on language. An encyclopedia provides factual summaries and explanations of concepts, people, events, and things.
Yes, metaphorically. Calling someone 'a walking encyclopedia' means they have vast, readily recallable knowledge on many subjects.
It is 'an encyclopedia' because the word begins with a vowel sound (/ɪn/). The rule depends on sound, not spelling.