Dictionaries Categorized by the Dewey Decimal System
Dictionaries by the Dewey Decimal Classification
This page maps dictionary types and lexicographical projects to the ten main classes of the Dewey Decimal Classification (DDC). Each section includes an example and (where applicable) a corresponding MorDictionary page.
000 — Generalities
Reference works, encyclopedias, knowledge systems, metadata, information science.
- Encyclopaedia Britannica — Traditional authoritative general encyclopedia (est. 1768).
- Wikipedia — Collaborative online encyclopedia and open knowledge platform.
- Stanford Encyclopedia of Philosophy — Expert-written digital reference work.
- Dewey Decimal Classification — Library knowledge taxonomy system.
- Universal Decimal Classification — Expanded European classification system.
- Library of Congress Classification — Major alternative library classification system.
- WorldCat — Global library catalog aggregating bibliographic metadata.
- Internet Archive — Digital preservation and archiving platform.
- Project Gutenberg — Public domain digital text archive.
- MorDictionary: 000 — Generalities
100 — Philosophy & Psychology
Dictionaries of philosophy, logic, rhetoric, psychology.
- Example: Philosophical glossaries
- MorDictionary: 100 — Philosophy
200 — Religion
Religious lexicons, theological dictionaries, biblical concordances.
- Example: Berean Bible
- MorDictionary: 200 — Religion
300 — Social Sciences
Political terminology, economics dictionaries, sociology glossaries.
- Example: Legal dictionaries, political science glossaries
- MorDictionary: 300 — Social Sciences
400 — Language
Linguistics, etymology, bilingual dictionaries, lexicography.
- Example: Traditional language dictionaries
- MorDictionary: 400 — Language
500 — Natural Sciences
Scientific terminology dictionaries.
- Example: Medical dictionaries, physics glossaries
- MorDictionary: 500 — Science
600 — Technology
Technical and applied science dictionaries.
- Example: Engineering glossaries
- MorDictionary: 600 — Technology
700 — Arts & Recreation
Art terminology, music dictionaries, film glossaries.
- Example: Art historical lexicons
- MorDictionary: 700 — Arts
800 — Literature
Literary terminology, genre glossaries, rhetorical devices.
- Example: Poetry glossaries
- MorDictionary: 800 — Literature
900 — History & Geography
Historical terminology, geographical lexicons, cultural glossaries.
- Example: Historical dictionaries
- MorDictionary: 900 — History