| Art Dictionary |
| Bible dictionary |
| Biographical Dictionary |
| Chinese dictionary |
| Computer & Internet dictionary |
| Dictionary of Algorithms and Data Structures |
| Dictionary of Biology (via Oxford Reference Online) |
| Dictionary of cell & Molecular Biology |
| Dictionary of Ecology (via Oxford Reference Online) |
| Dictionary of Plant Sciences (via Oxford Reference Online) |
| Dictionary of the Social Sciences |
| Dream interpretation dictionary |
| English Dictionary |
| French Dictionary |
| German dictionary |
| Greek dictionary |
| Hebrew dictionary |
| Italian dictionary |
| Japanese Dictionary |
| Latin dictionary |
| Law & Legal dictionary |
| Library Automation/Technology Glossary |
| Mathematical Dictionaries |
| MedBio World: Online scientific and medical dictionaries |
| Medical Dictionary |
| Medical dictionary |
| Merriam Webster Dictionary |
| M-W Thesaurus |
| Occupational Titles |
| ODLIS — |
| Online Dictionary of Library & Information Science |
| Online Dictionary of the Social Sciences |
| Polish Dictionaries |
| RhymeZone |
| Rhyming dictionary |
| Roget’s II: The New Thesaurus |
| Roget’s Int. Thesaurus of English Words and Phrases |
| Roget’s Thesaurus |
| Russian dictionary |
| Science dictionary |
| Sign language dictionary |
| Slang dictionary |
| Spanish Dictionary |
| Sports Glossaries |
| Thesaurus |
| Turkish dictionary |
| Vietnamese Dictionary |
| Virtual Librarian: Glossary & Index |
| Visual Thesaurus |
