NTC’s Pocket Dictionary of Words and Phrases is for persons who are seeking to improve their ability to speak, read, write, and understand American English. It is a small, portable dictionary that will help learners with spelling, pronunciation, parts of speech, meaning, irregular forms, and the appropriate use of 12,000 common words and phrases. This dictionary defines words using the smallest possible vocabulary, but when it is necessary, additional words are used to define difficult concepts.