What is the phonetic alphabet word for the letter D?

The phonetic alphabet word for the letter D is "Delta." The International Radiotelephony Spelling Alphabet, commonly known as the NATO phonetic alphabet, assigns specific words to each letter to enhance clarity during verbal communication, especially in noisy environments or over radio transmissions. "Delta" is universally used to represent the letter D, making it easily recognizable and reducing the chances of misunderstanding.

The other words listed correspond to different letters: "Foxtrot" represents F, "Juliet" represents J, and "Kilo" stands for K. Each word in the phonetic alphabet serves to avoid confusion that might arise from similar-sounding letters, thus ensuring effective communication, especially in maritime and aviation contexts where clarity is crucial.