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NATO phonetic alphabet

American  
[nay-toh-fuh-net-ik al-fuh-bet] / ˈneɪ toʊ fəˈnɛt ɪk ˈæl fəˌbɛt /

noun

  1. Also called the International Radiotelephony Spelling Alphabet, a system in which each letter of the alphabet is assigned a distinct code word that starts with that letter, such as Hotel for H or Yankee for Y. When a letter is used in an identification or abbreviation, it is represented with its code word to avoid confusion in transmission.

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Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.