Book excerpt: The English Language Word Builder organizes English words in a way that is beneficial to anyone wishing to improve their vocabulary, from those learning the English language through to those wishing to excel at word games such as Scrabble. The book contains the basic form of some 82,500 words from two to nine letters in length, and is organized in chapters depending on the word length. Within each chapter, words are designated as either familiar or less familiar, with the familiar words deemed to be those of most use when communicating in English. With the exception of less familiar nine-letter words, each word is assigned a part of speech which is evident from formatting applied. For example, underlining indicates verbs while bold type indicates adjectives and other words that cannot be pluralized. Symbols are used to indicate additional forms of each basic word, with a special symbol being used to designate irregular verbs. Within sections of familiar words in each chapter, words are grouped in accordance with their part of speech. Within sections of less familiar words, words are grouped firstly into those which are built from shorter words, and then into all other words with various groupings depending on the word length. Available single letter extensions of basic words are shown by a lower case letter at the end of each capitalized main word. This enables users of the book to build on their existing vocabulary to make new words, either for use in word games or in communicating in English.