Now that my daughters are learning to read I have a new and better appreciation of importance of good visual aids as they learn new words. Likewise, for kids who are a little older than mine, the right visual aids can make all the difference between them understanding a term or confusion. This pattern is true when students are learning new vocabulary words and or seeing the connections between similar words. To that end, here are four visual dictionaries and a thesaurus that can help your students learn new vocabulary words.