Which word in the phonetic alphabet corresponds to the letter X?

The word that corresponds to the letter X in the phonetic alphabet is "X-ray." The phonetic alphabet, also known as the NATO phonetic alphabet or ICAO phonetic alphabet, is a standardized set of words used to represent letters of the English alphabet, particularly in radio communications to ensure clarity and avoid misinterpretation. Each letter is assigned a specific word to minimize confusion, especially in noisy environments or over poor communication lines.

"X-ray" was chosen as the representation for the letter X due to its recognizability and ease of pronunciation across different languages and cultures, which is essential for effective communication within military operations and international communications. The use of "X-ray" provides a universally understood term that relates to both the letter X and a commonly known medical term, further aiding its memorability.

The other options, although they start with X, are not part of the official phonetic alphabet used by military and aviation professionals, making them less relevant in this context.