History of the Greek alphabet consonant letter, rather than seemingly have two exceptions in spelling. Greek, like Phoenician, made a distinction for vowel length; indeed, Greek had five short vowels and seven long vowels, but only five vowel letters. As in Phoenician, the difference in length was not originally made in writing. However, by the 6th century BC the letter eta (not needed for a consonant in eastern dialects of Greek, which lacked ) came to stand for the long vowel , and a new letter, omega, was developed for long . The provenance of omega is not known, but it is generally assumed to
Spelling alphabet names used in lieu of alphabet letters for the purpose of spelling out words. It is used by the Greek armed and emergency services. Malay and related languages (Indonesian etc.) represent letter "L" with "London", since the word "lima" also means "five" in these languages. The Russian spelling alphabet is a spelling alphabet for the Russian version of the Cyrillic alphabet. In Spanish the word "ñoño" (, 'dull') is used for ñ. The PGP word list, the Bubble Babble wordlist used by ssh-keygen, and the S/KEY dictionary, are spelling alphabets for public key fingerprints (or other binary data) – a