A neat widget that can be embedded into blog and wikis is from Answer.com
What you do is install this into your blog and users can double click on any word and get the definition and spelling of the word. Plus more...
Tall tale spelling and vocabulary words
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deed- act or action
exaggerate- to stretch the truth
frontier- a remote area where few people live
settler/pioneer- the first to settle in an area
hero- main...