Kids Wordsmyth is a great visual dictionary in which students can search for words, hear them pronounced, read definitions, and see illustrations of words. Students can search for words or simply browse through the Kids Wordsmyth online dictionary. The dictionary is arranged in a virtual book format with tabs for each letter of the alphabet.

Snappy Words is a free visual dictionary and thesaurus. Enter any word or phrase into the Snappy Words search box and it will create a web of related words, phrases, and definitions. Hover your cursor over any word or phrase in the web to read its definition. Click and drag any node to explore other branches of the web. Double click on a node and it will generate new web branches.

Image Dictionary is a Chrome extension that enables users to right-click on a word and quickly find an image that is representative of that word. To use the Image Dictionary extension just highlight a word on a webpage, right-click, and select “image search.” The images that are shown come from Wikipedia. Image Dictionary could be a handy little extension to use when you want to quickly find an image to represent a plant, animal, or perhaps a broad topic.

Wili the Word Wizard’s Math Dictionary is a glossary of important terms that elementary school and middle school students need to know to be successful in their mathematics classes. The dictionary includes diagrams when appropriate.

Visuwords uses a web design to show users the definitions of words and the connections between words. To use Visuwords just type a word into the search box and Visuwords will generate a web of related words. Place your cursor over any of the words and the definition appears. Use the color-coded key to understand the connections between the words in any web.