Which word corresponds to the letter 'O' in the phonetic alphabet?

The word that corresponds to the letter 'O' in the phonetic alphabet is "Oscar." The phonetic alphabet, also known as the NATO phonetic alphabet, is used to ensure clarity and precision in verbal communication, particularly in military and aviation contexts. Each letter of the alphabet is represented by a distinct word to avoid confusion, especially in environments where miscommunication could have serious consequences.

"Oscar" is specifically designated to represent the letter 'O,' making it the correct choice in this context. The other options represent different letters: "Papa" stands for 'P,' "Quebec" is used for 'Q,' and "Romeo" corresponds to 'R.' This standardized phonetic system is essential for effective communication in operations, training, and coordination among personnel.