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i

From Wiktionary, the free dictionary

i U+0069, i
LATIN SMALL LETTER I
← h
[U+0068]
Basic Latin j →
[U+006A]

Translingual

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English Wikipedia has an article on:
Wikipedia

Etymology 1

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Lower case variation of upper case I, from Ancient Greek letter Ι (I, “Iota”).

Letter

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i (lower case, upper case I)

  1. The ninth letter of the basic modern Latin alphabet.

Letter

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i (upper case İ)

  1. In the Turkish alphabet and its descendants, the lower-case form of dotted capital İ, which contrasts with ı as the lower-case form of dotless capital I.

See also

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Derived symbols

Similar and related symbols

Etymology 2

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Pronunciation

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  • Pronunciation of IPA [iː]:(file)

Symbol

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i

  1. (mathematics, often in italics or bold) The imaginary unit; a fixed square root of -1. Graphically, i is shown on the vertical (y-axis) plane.
    Synonym: j
    a+bi with a is real part and b is imaginary part
  2. (mathematics, often in bold) The unit vector in the x direction.
    Coordinate terms: j, k
  3. (engineering, often in bold) The current flow in an electric circuit, frequently measured in amperes.
    v=ir (Ohm's Law)
  4. (mathematics, programming) A common variable name representing a generic index, especially in loops.
    Synonym: j
  5. January.
    Comeronyms: II, ii, 2; III, iii, 3; IV, iv, 4; V, v, 5; VI, vi, 6; VII, vii, 7; VIII, viii, 8; IX, ix, 9; X, x, 10; XI, xi, 11; XII, xii, 12
  6. (IPA, romanization) a close front unrounded vowel.
  7. (superscript ⟨ⁱ⟩, IPA) [i]-coloring, an [i] on-glide or off-glide (a diphthong), or a weak, fleeting, epenthetic or echo [i].
  8. (international standards) transliterates Indic इ (or equivalent).
  9. (financial mathematics) annual effective interest rate
  10. (subscript, linguistics) indicates that two items are identical or coreferential (refer to the same thing). E.g. CViCVi means a sequence of consonant-vowel-consonant-vowel, where the two V's are the same vowel; Sallyi ... shei means that 'she' refers to 'Sally'. A second identity may be indicated with j.

Etymology 3

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Lower case form of upper case Roman numeral I, apparently derived from the shape of a notch scored across a tally stick.

Alternative forms

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Numeral

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i (lower case Roman numeral, upper case I)

  1. cardinal number one
  2. (music) minor tonic triad

See also

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See also

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Other representations of I:

English

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Etymology 1

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From Latin i, minuscule of I.

Pronunciation

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Letter

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i (lower case, upper case I, plural is or i's)

  1. The ninth letter of the English alphabet, called i and written in the Latin script.
Usage notes
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The English letter i represents many different sounds, often the diphthong /aɪ/ (from Middle English /iː/), as in the pronoun I, or /ɪ/ as in bit. In borrowings, it may represent /iː/ as well.

See also
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Number

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i (lower case, upper case I, plural is or i's)

  1. The ninth numeral symbol of the English alphabet, called i and written in the Latin script.

Noun

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i (plural ies)

  1. The name of the Latin script letter I/i.
    • the position of an i-dot (the dot of an i)
    • i-mutation, i-umlaut
Alternative forms
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Translations
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Derived terms

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See also

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Etymology 2

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From Old English iċ.

Pronunciation

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Pronoun

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i

  1. (nonstandard) Alternative letter-case form of I.
    • 1762, Benj[amin] Stillingfleet, Miscellaneous Tracts Relating to Natural History, Husbandry, and Physick. To Which Is Added the Calendar of Flora., 2nd edition, London: […] R. and J. Dodsley, […]; S. Baker, […]; and T. Payne, […], pages 30 and 32:
      Here follow ſome few lines in the original, which not underſtanding i have omitted. […] Laſtly that amidſt ſo many viciſſitudes of fortune, to which I have been expoſed, amongſt all the goods, i ſay, and evils, the joyfull and gloomy, the pleaſing, and diſagreeable circumſtances of life, thou endowedſt me with an equal, conſtant, manly, and ſuperior ſpirit on every occaſion.
    • 2021 January 26, Travis M. Andrews, “‘When covid is over’ sounds like ‘when I meet Harry Styles’: The new pandemic meme, explained”, in The Washington Post‎[1], archived from the original on 27 January 2021:
      As YouTuber Alex Elmslie tweeted, “ ‘once COVID is over’ is starting to sound a lot like ‘when i fix my sleep schedule.’ ”
Usage notes
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  • Also used in instant messaging due to limitations of entering capitals on a mobile phone's keypad.
  • Sometimes to indicate informality, primarily in typed media