Revised for the 21st century, The American Heritage(R) Children's Dictionary for children in grades 3 through 6 contains 37,000 entries. New notes on spelling tips have been added to the useful special features on synonyms, word histories, prefixes, and suffixes. A thesaurus, a list of up-to-date geographic terms, and a Guide to Spelling and Phonics are also featured. The book has a new and innovative design with over 800 colorful photographs and illustrations.