- Oxford English Dictionary
- The Oxford English Dictionary (OED) is the accepted authority on the English language . It is a guide to the meaning, history, and pronunciation of over a half a million words, present and past. The OED covers words from across the English-speaking world. The online version is updated quarterly. Library Subscription
- Oxford Reference Online
- Covering the full spectrum of subjects: from General Reference & Language to Science & Medicine, from Humanities & Social Sciences to Business and Professional, Oxford Reference Online is a full & authoritative resource of over 100 dictionaries and reference titles. Library Subscription
- YourDictionary.com
- A language portal with containing over 280 language dictionaries, subject glossaries, and tons of wordlists and words and meanings.
