View source for Ï

{{Short description|Latin letter I with dieresis}}
{{redirect|I:|the vowel transcribed as [iː]|Close front unrounded vowel}}
{{for-multi|the Cyrillic letter&nbsp;Ї|Yi (Cyrillic)|the homographic Greek letter|ϊ}}
{{Infobox grapheme|name=I with Diaeresis|script=[[Latin script]]|fam1=[[I]][[E]]|letter=Ï ï|image=Latin letter I with diaeresis.svg|imageclass=skin-invert-image|unicode=U+00CF, U+00EF|phonemes={{flex list
|[{{IPA link|ɯ}}]
|[{{IPA link|ɛ}}]
|[{{IPA link|i}}]
|[{{IPA link|ɨ}}]
|[{{IPA link|ɪ}}]
|[{{IPA link|ˈiː}}]
}}}}
'''Ï''', lowercase '''ï''', is a symbol used in various languages written with the [[Latin alphabet]]; the Latin letter [[I]] with a [[two dots (diacritic)|diacritic of two dots]], which may be read as I with [[Diaeresis (diacritic)|diaeresis]].<ref>{{cite web |url=https://www.unicode.org/charts/PDF/U0080.pdf |pages=11–12|title=C1 Controls and Latin-1 Supplement}}</ref> <!-- there is no umlaut here because it is already a front vowel, and so cannot be fronted again in the umlaut process; therefore, it would be very surprising for a reliable source to call this symbol I-umlaut (but perhaps one will eventually be found). "Trema" is just a linguistics name for the two-dots diacritic, so pointless to declare it again. -->

Initially in [[French language|French]] and also in [[Afrikaans language|Afrikaans]], [[Catalan language|Catalan]], [[Dutch language|Dutch]], [[Galician language|Galician]], [[Southern Sami language|Southern Sami]], [[Welsh language|Welsh]], and rarely [[English language|English]], {{angle bracket|ï}} is used when {{angle bracket|i}} follows another vowel and indicates [[hiatus (linguistics)|hiatus]] in the pronunciation of such a word. It indicates that the two vowels are pronounced in separate syllables, rather than together as a [[diphthong]] or [[digraph (orthography)|digraph]]. For example, French ''maïs'' ({{IPA|fr|ma.is|IPA|LL-Q150 (fra)-Fhala.K-maïs.wav}}; "[[maize]]"); without the diaeresis, the {{angle bracket|i}} is part of the digraph {{angle bracket|ai}}: ''mais'' ({{IPA|fr|mɛ|IPA|fr-mais.ogg}}; "but"). The letter is also used in the same context in [[Dutch language|Dutch]], as in ''Oekraïne'' ({{IPA|nl|ukraːˈ(j)inə|pron|nl-Oekraïne.ogg}} *{{IPA|nl|uˈkrɑinə|label=and not}}; "[[Ukraine]]"), and English ''naïve'' ({{IPAc-en|n|ɑː|ˈ|iː|v}} {{respell|nah|EEV}} or {{IPAc-en|n|aɪ|ˈ|iː|v}} {{respell|ny|EEV}}).

In scholarly writing on [[Turkic languages]], {{angbr|ï}} is sometimes used to write the [[close back unrounded vowel]] {{IPA|/ɯ/}}, which, in the standard modern [[Turkish alphabet]], is written as the [[dotless i]] {{angbr|ı}}.<ref>Marcel Erdal, ''A Grammar of Old Turkic'', Handbook of Oriental Studies '''3''', {{ISBN|9004102949}}, 2004, p. 52</ref> The back neutral vowel reconstructed in [[Proto-Mongolic language|Proto-Mongolic]] is sometimes written {{angbr|ï}}.<ref>Juha Janhunen, ed., ''The Mongolic Languages'' {{ISBN|0415681545}}, p. 5</ref>

In the transcription of [[Amazonian languages]], {{angbr|ï}} is used to represent the high central vowel {{IPAblink|ɨ}}.

It is also a transliteration of the rune [[ᛇ]].

==Computing==
The symbol is encoded in Unicode with these codepoints:
* {{unichar| 00CF}} 
* {{unichar| 00EF}}

==See also==
*[[Umlaut (diacritic)]]
*[[Yi (Cyrillic)]] (Ї ї)

==References==
{{Reflist}}
{{Latin script}}

{{DEFAULTSORT:I-Diaeresis}}
[[Category:Latin letters with diacritics]]


{{Latin-script-stub}}