A spelling alphabet, voice procedure alphabet, radio alphabet, or telephone alphabet is a set of words used to stand for the letters of an alphabet in oral communication. It is used to spell parts of a message containing letters and numbers to avoid confusion.
| Royal Navy (during WW1) | U.S. phonetic alphabet (during WW2) | NATO phonetic alphabet (since 1956) |
|---|---|---|
| Apples | Able | Alfa |
| Butter | Baker | Bravo |
| Charlie | Charlie | Charlie |
| Duff | Dog | Delta |
| Edward | Easy | Echo |
| Freddy | Fox | Foxtrot |
| George | George | Golf |
| Harry | How | Hotel |
| Ink | Item | India |
| Johnnie | Jig | Juliet |
| King | King | Kilo |
| London | Love | Lima |
| Monkey | Mike | Mike |
| Nuts | Nan | November |
| Orange | Oboe | Oscar |
| Pudding | Peter | Papa |
| Queenie | Queen | Quebec |
| Robert | Roger | Romeo |
| Sugar | Sugar | Sierra |
| Tommy | Tare | Tango |
| Uncle | Uncle | Uniform |
| Vinegar | Victor | Victor |
| Willie | William | Whisky |
| Xerxes | X-ray | X-Ray |
| Yellow | Yoke | Yankee |
| Zebra | Zebra | Zulu |