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Added 10 October 2026

i

/ə/ letter

In Latin: ī Wiktionary

letter Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about i at Wordnik → Where our words come from →

The ninth letter of the basic modern Latin alphabet.

letter

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.

symbol

The imaginary unit; a fixed square root of -1. Graphically, i is shown on the vertical (y-axis) plane.
a+bi with a is real part and b is imaginary part
The unit vector in the x direction.
The current flow in an electric circuit, frequently measured in amperes.
v=ir (Ohm's Law)

numeral

cardinal number one
minor tonic triad

Origin

From Latin i, minuscule of I.

From Wiktionary, via Kaikki.org (CC BY-SA)

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