Spelling alphabets are also know as radio alphabets, telephone alphabets, or phonetic alphabets. Spelling alphabets are examples of acrophony. The words represent letters in oral communications.
Two examples of spelling alphabets are the NATO phonetic alphabet and the US phonetic alphabet.
For example skybox becomes sugar king yoke baker oboe x-ray. Or using the NATO spelling alphabet it’s sierra kilo yankee bravo oscar x-ray
NATO phonetic alphabet
U.S. phonetic alphabet
The Navajo code talkers in World War II worked out of the Third, Fourth, and Fifth Divisions of the U.S. Marines. They had their own spelling alphabet, reflecting their culture and heritage. They must not enjoy X’s in their life.