I, or i, is the ninth letter and the third vowel letter of the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is i (pronounced / ˈaɪ /), plural ies. [1][better source needed] In English, the name of the letter is the "long I" sound, pronounced / ˈaɪ /.

In English, I is a pronoun which means "me". " I like you." " You and I shall walk to the store." " You and I are friends." In Azerbaijani, Crimean Tatar, Gagauz and Turkish, the letter I has two kinds, one with a tittle (İ, i) and one without one (I, ı). In Spanish, Í is used for a stressed I. In chemistry, I is the symbol for iodine.

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Ï, lowercase ï, is a symbol used in various languages written with the Latin alphabet; it can be read as the letter I with diaeresis, I- umlaut or I- trema.

Í, í (i - acute) is a letter in the Faroese, Hungarian, Icelandic, Karakalpak, Dobrujan Tatar, Czech, and Slovak languages, where it often indicates a long /i/ vowel (ee in English word feel).

Î, î (i - circumflex) is a letter in the Friulian, Kurdish, Tupi, Persian Rumi, and Romanian alphabets and phonetic Filipino. This letter also appears in French, Turkish, Italian, Welsh and Walloon as a variant of the letter “i”. In Afrikaans, î is a punctuated form of i: wîe, the plural of wig ('wedge').

I (named i / ˈaɪ /, plural ies) [1] is the nint letter an a vowel in the ISO basic Latin alphabet. In Semitic, the letter mey hae originatit in a hieroglyph for an airm that representit a voiced pharyngeal fricative (/ʕ/) in Egyptian, but wis reassigned tae /j/ (as in Inglis " y es") bi Semites, acause thair wird for "airm" began wi that soond.

Ì is used in the ISO 9:1995 system of Ukrainian transliteration as the Cyrillic letter І. In the Pinyin system of Chinese romanization ì is an i with a falling tone. This appears in Alcozauca Mixtec, Italian, Sardinian, Taos, Vietnamese, Welsh, Alsatian, Scottish Gaelic, Ojibwe, Venetan and also in the constructed language Na'vi.