Which phonetic alphabet word corresponds to the letter "S"?

The phonetic alphabet word that corresponds to the letter "S" is "Sierra." This system, known as the International Radiotelephony Spelling Alphabet, was developed to ensure clarity and understanding when communicating over radio or telephone, particularly in noisy environments or situations where language barriers may exist. Each letter of the alphabet is assigned a specific word, making it easier to convey letters accurately.

For "S," "Sierra" is distinct and recognizable, ensuring it is not easily confused with other letters. Clarity in communication is vital for operations, especially within the Coast Guard, where accurate coordination and instructions are crucial. Therefore, "Sierra" is the correct representation of the letter "S" in this phonetic alphabet.