NATO Phonetic alphabet

Some letters may sound over a radio transmission very similar. To reduce the risk of a misunderstanding, all letters aren't spelled individually, but with a easy to differentiate, pre-determined word.  

 

 This also applies to numbers in a similar fashion: 

 0: "ZEE-RO"    1: "WUN"    2: "TOO"    3: "TREE"    4: "FOW-ER"    5: "FIFE"    6: "SIX"    7: "SEV-EN"    8: "AIT"    9: "NIN-ER" 

 Link to the offical NATO Page