Dictionaries
- Alliteration. Vocabulary of Alliteration A dictionary of English alliterative words, for use in writing poems, songs, and studying phonetic and phonemic syllable divisions.

- Bartleby.com Books and reference sources.
- Cliche Finder
- Dictionary.com
- Dictionary of Military Terms
- Dictionary of PC Hardware and Data Communications Terms Provided by O'Reilly and Associates.
- Dictionary of Phrase and Fable (1894)
- The Etymology of First Names
- Garden Web Glossary Glossary of Botanical Terms relating to botany, gardening, horticulture and landscape architecture.
- Genealogy Dictionary Meanings of terms encountered while doing genealogical research. Meanings of terms encountered while doing genealogical research.
- Glossary of Literary Terms
- Online Legal Dictionary
- On-line Medical Dictionary
- Rhyming Dictionary Find words that rhyme with, almost rhyme with, or sound exactly the same as a certain target word, or find words that approximate or have the same meaning as an intended concept.
- Roget's Internet Thesaurus
- Synonym Dictionary
- WordNet. Synonyms, antonyms, hypemyms, troponyms, and more.