 However, there are still differences in pronunciation between the ICAO and other agencies, and the ICAO has conflicting Latin-alphabet and International Phonetic Alphabet (IPA) transcriptions.Also, although all codes for the letters of the alphabet are English words, they are not in general given English pronunciations.Pronunciations are somewhat uncertain because the agencies, while ostensibly using the same pronunciations, give different transcriptions, which are often inconsistent from letter to letter.