In the phonetic alphabet, what word is used for the letter O?

In the phonetic alphabet, which is designed to ensure clear communication, particularly in situations where misunderstanding letters could lead to serious consequences, the word used for the letter O is "Oscar." This terminology stems from the International Civil Aviation Organization (ICAO) and is utilized by various organizations, including the military and aviation sectors, to avoid confusion over radio transmissions. Each letter of the alphabet is assigned a distinct word to enhance clarity, with "Oscar" specifically representing the letter O. This helps prevent errors when spelling out words or messages that include this letter, ensuring that recipients accurately understand the intended communication. While the other choices might seem plausible, they do not serve the same purpose in the established phonetic alphabet framework.