Which letter in the phonetic alphabet is represented by 'X'?

In the phonetic alphabet used by the military and various communication agencies, the letter 'X' is represented by the word "X-ray." This phonetic alphabet is designed to ensure clarity in verbal communication, especially over radio or telephone, where misunderstandings can occur due to similar-sounding letters or background noise.

"X-ray" was chosen because it is widely recognized in both scientific and general contexts as a term associated with imaging and diagnostics, making it an easily understood choice among various options. While other terms like "Xylophone," "Xerox," and "Xenon" could potentially represent the letter 'X,' they are not part of the standardized phonetic alphabet. In this context, adherence to the established phonetic word is crucial for effective communication within diverse operations, which is why "X-ray" is the correct representation.