Cambridge English Pronouncing Dictionary, originally compiled by Daniel Jones and updated by leading phoneticians, is the most authoritative guide to the pronunciation of contemporary English. It provides clear transcriptions in both British and American English using the International Phonetic Alphabet (IPA), making it an essential resource for students, teachers, linguists, and professionals. With thousands of words, names, and technical terms, the dictionary helps users master correct pronunciation, understand regional variations, and improve spoken English accuracy. Widely used around the world, it is a trusted reference for anyone seeking to speak English with clarity and confidence.