In Chinese pinyin í is the yángpíng tone (阳平, high-rising tone) of “i”.
Dobrujan Tatar
Í is the 12th letter of the Dobrujan Tatar alphabet, represents the hight unrounded half-advanced ATR or soft vowel /ɨ/ as in "bír" [b̶ɨr̶] 'one'. At the end of the word it is pronounced with half open mouth undergoing dilatation "Keñiytúw" and becoming mid unrounded half-advanced ATR or soft /ə/, also known as schwa, as in "tílí" [t̶ɨl̶ə] 'his tongue'.
Faroese
Í is the 11th letter of the Faroese alphabet and represents /ʊi/.
In Ibero-Romance languages, the "í" is not considered a letter, but the letter "i" with an accent. It is used to denote an "i" syllable with abnormal stress. In Italian, Í/í is a variant of I carrying an acute accent; it represents an /i/ carrying the tonic accent. It is used only if it is the last letter of the word except in dictionaries or when a different pronunciation may affect the meaning of a word: víola ("violates", pronounced[ˈviːola]) and viòla ("violet", pronounced['vjɔːla]).
Karakalpak
Í is the 13th letter of the Karakalpak alphabet. It represents /ɯ/. Its preferred lowercase form is ⟨ı⟩.