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The Turkish alphabet, which is a variant of the Latin alphabet, includes two distinct versions of the letter I, one dotted and the other dotless. The dotless I, I ı, denotes the close back unrounded vowel sound (). Neither the upper nor the lower case version has a dot. The dotted I, İ i, denotes the close front unrounded vowel sound (). Both the upper and lower case versions have a dot. Examples: *''İstanbul'' (starts with an i sound, not an ı). *''Diyarbakır'' (the first and last vowels are spelled and pronounced differently) In contrast, the letter j does not have this distinction, with a dot only on the lower case character: J j. In scholarly writing on Turkic languages, ï is sometimes used for .〔Marcel Erdal, ''A Grammar of Old Turkic'', Handbook of Oriental Studies 3, ISBN 9004102949, 2004, p. 52〕 ==Consequence for ligatures== right In some fonts, if the lowercase letters "fi" are placed adjacently, the dot-like upper end of the "f" would fall inconveniently close to the dot of the "i", and therefore a ligature glyph is provided with the top of the "f" extended to serve as the dot of the "i". A similar ligature for "ffi" is also possible. Since the unligatured forms are unattractive and the ligatures make the "i" dotless, such fonts are not appropriate for use in a Turkish setting. However, the fi ligatures of some fonts do not merge the letters and instead space them next to each other, with the dot on the ''i'' remaining. Such fonts are appropriate for Turkish, but the writer must be careful to be consistent in the use of ligatures. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Dotted and dotless I」の詳細全文を読む スポンサード リンク
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