There are 26 code words in the NATO phonetic alphabet. They are assigned to the 26 letters of the English alphabet in alphabetical order as follows: Alfa (Alpha), Bravo, Charlie, Delta, Echo, Foxtrot, Golf, Hotel, India, Juliet(t), Kilo, Lima, Mike, November, Oscar, Papa, Quebec, Romeo, Sierra, Tango, Uniform, Victor, Whiskey, X-ray, Yankee, Zulu.

The International Radiotelephony Spelling Alphabet, commonly known as the NATO phonetic alphabet or phonetic alphabet, is the most widely used radiotelephonic spelling alphabet in the world. The final choice of code words for the letters of the alphabet was made after hundreds of comprehension tests involving 31 nationalities. The qualifying feature was the likelihood of a code word being understood in the context of other words.

Also, although all codes for the letters of the alphabet are English words, they are not in general given English pronunciations. Assuming that the transcriptions are not intended to be precise, only 11 of the 26—Bravo, Echo, Hotel, Juliet(t), Kilo, Mike, Papa, Quebec, Romeo, Whiskey, and Zulu—are given English pronunciations by all using these words, though not always the same English pronunciations.

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