Vowel in Creek, the letter "V" stands for . There is not necessarily a direct one-to-one correspondence between the vowel sounds of a language and the vowel letters. Many languages that use a form of the Latin alphabet have more vowel sounds than can be represented by the standard set of five vowel letters. In English spelling, the five letters "A" "E" "I" "O" and "U" can represent a variety of vowel sounds, while the letter "Y" frequently represents vowels (as in e.g., "gym", "happy", or the diphthongs in "cry", "thyme"); "W" is used in representing some diphthongs (as in "cow")
Close back rounded vowel and are used in different transcription systems to represent the same sound. The close back protruded vowel is the most common variant of the close back rounded vowel. It is typically transcribed in IPA simply as , which is the convention used in this article. As there is no dedicated IPA diacritic for protrusion, the symbol for the close back rounded vowel with an old diacritic for labialization, , can be used as an "ad hoc" symbol . Another possible transcription is or (a close back vowel modified by endolabialization), but that could be misread as a diphthong. Some languages,