Which word represents the letter O in the phonetic alphabet?

The word that represents the letter O in the phonetic alphabet is "Oscar." This system, known as the International Radiotelephony Spelling Alphabet, was developed to ensure clarity and avoid confusion in verbal communications, particularly in noisy environments. Each letter of the alphabet is assigned a specific word, making it easier for individuals to convey letters correctly.

"Oscar" is specifically chosen because it is distinct, easily recognizable, and sounds different enough from other similar-sounding letters, which helps to minimize miscommunication. The phonetic alphabet is widely used in military communications, aviation, and other fields where clear verbal communication is essential, thus reinforcing the importance of using standardized phonetic words to represent letters.