letter of the Latin alphabet From Wikipedia, the free encyclopedia

**I** is the ninth (number 9) letter in the English alphabet.

In English, I is a pronoun which means "me".

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.
- In Roman numerals, I means the number one (1).
- i is the mathematical symbol for the square root of negative one, also called the imaginary unit.
- In physics, I refers to the moment of inertia.

The dictionary definition of i at Wiktionary

Media related to I at Wikimedia Commons

Seamless Wikipedia browsing. On steroids.

Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.

Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.