Which word is used for the letter R in the phonetic alphabet?

The letter R in the phonetic alphabet is represented by the word "Romeo." This phonetic alphabet, widely used in aviation, military, and other fields to ensure clear communication, assigns specific words to each letter to prevent misunderstanding that may arise from poor reception or accents.

Using "Romeo" helps to distinguish it clearly from other letters that might sound similar, particularly in noisy environments or over radio transmissions, where clarity is crucial. The other options, while they might represent words starting with the letter R, do not serve as the official designation in the phonetic alphabet. Hence, "Romeo" is the correct term to use for the letter R.