ClassFlow
Class Flow: Synonyms and Antonyms
[Free Registration/Login Required] The student will recognize and apply the appropriate usage of homophones, homographs, antonyms, and synonyms.
BBC
Bbc: Skillswise: Words to Watch Out For
A factsheet, a worksheet, a game, and a quiz are provided for teachers and students at this BBC spelling skills tutorial that shows you how to avoid confusing words.
Other
Bob's Byway: Glossary of Poetic Terms
Calling itself "unique," Bob's is easy to use, with cross-links throughout, phonetic pronunciation guides when necessary, and many examples and quotations. Click on the letter and scroll for the word.
Other
Cooper: Alan Cooper's Homonyms
An alphabetical list of homonyms: words of different meanings that sound the same. Also includes a humorous look at homonyms in the "All about Homonyms" link.
Arcademics
Arcademics: Furious Frogs, Antonyms, Synonyms, Homonyms
Pick the game to play: antonyms, synonyms, homonyms and then quickly click the correct word that is the same or opposite.