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I (named i , plural ies)Brown & Kiddle (1870) The institutes of English grammar, p. 19.
Ies is the plural of the English name of the letter; the plural of the letter itself is rendered I's, Is, i's, or is.
is the ninth letter and the third in the ISO basic Latin alphabet.


In the Phoenician alphabet, the letter may have originated in a hieroglyph for an arm that represented a voiced pharyngeal fricative () in Egyptian, but was reassigned to (as in English " yes") by Semites, because their word for "arm" began with that sound. This letter could also be used to represent , the close front unrounded vowel, mainly in foreign words.

The Greeks adopted a form of this Phoenician yodh as their letter () to represent , the same as in the Old Italic alphabet. In Latin (as in Modern Greek), it was also used to represent and this use persists in the languages that descended from Latin. The modern letter 'j' originated as a variation of 'i', and both were used interchangeably for both the vowel and the consonant, coming to be differentiated only in the 16th century. The dot over the lowercase 'i' is sometimes called a . In the , dotted and dotless I are considered separate letters, representing a front and back vowel, respectively, and both have uppercase ('I', 'İ') and lowercase ('ı', 'i') forms.

Use in writing systems

In Modern English spelling, represents several different sounds, either the diphthong ("long" ) as in kite, the short as in bill, or the sound in the last syllable of machine. The diphthong developed from through a series of vowel shifts. In the Great Vowel Shift, Middle English changed to Early Modern English , which later changed to and finally to the Modern English diphthong in and Received Pronunciation. Because the diphthong developed from a Middle English long vowel, it is called "long" in traditional English grammar.

The letter, , is the fifth most common letter in the .

The English first-person singular nominative pronoun is "I", pronounced and always written with a capital letter. This pattern arose for basically the same reason that lowercase acquired a dot: so it wouldn't get lost in manuscripts before the age of printing:

Other languages
In many languages' orthographies, is used to represent the sound or, more rarely, .
See French orthography.
See German orthography.
Pronounced as long in stressed and open syllables, when in a closed stressed syllable or unstressed. See Italian orthography.

Other uses
The Ⅰ represents the number 1. In mathematics, the lowercase "" represents the unit imaginary number.
(2012). 9781461458760, Springer Science & Business Media. .

Forms and variants
In some , the uppercase letter I, 'I' may be difficult to distinguish from the lowercase letter L, 'l', the '|', or the digit one '1'. In serifed typefaces, the capital form of the letter has both a baseline and a cap-height serif, while the lowercase L generally has a hooked ascender and a baseline serif.

The uppercase I does not have a dot () while the lowercase i has one in most Latin-derived alphabets. However, some schemes, such as the , have two kinds of I: dotted (İi) and dotless (Iı).

The uppercase I has two kinds of shapes, with serifs () and without serifs (). Usually these are considered equivalent, but they are distinguished in some extended Latin alphabet systems, such as the 1978 version of the African reference alphabet. In that system, the former is the uppercase counterpart of ɪ and the latter is the counterpart of 'i'.

Computing codes
1Also for encodings based on ASCII, including the DOS, Windows, ISO-8859 and Macintosh families of encodings

Other representations

Related characters

Descendants and related characters in the Latin alphabet
  • I with : Ị ị Ĭ ĭ Î î Ǐ ǐ Ɨ ɨ Ï ï Ḯ ḯ Í í Ì ì Ȉ ȉ Į́ Į̃ Ī ī Ī̀ ī̀ ᶖ Ỉ ỉ Ȋ ȋ Ḭ ḭ ᶤ
  • İ i and I ı : Latin dotted and dotless letter i i̇̀ i̇́ i̇̃ į̇́ į̇̃
  • IPA-specific symbols related to I:
  • The Uralic Phonetic Alphabet uses various forms of the letter I:
  • Other variations used in phonetic transcription: ᵻ ᶤ ᶦ ᶧ
  • ⁱ : Superscript small i is used for Computer terminal graphics
  • Ɪ ɪ : Small capital I
  • ꟾ :
  • ꟷ :

Ancestors and siblings in other alphabets
  • 𐤉 : Semitic letter , from which the following symbols originally derive

See also

External links
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