I — the letter and the English pronoun
Overview of the letter I: its role in the Latin alphabet, pronunciation and forms, its use as the English first‑person pronoun, historical origins, and notable variations such as the dotted and dotless I.
The character I occupies a central place in Latin‑derived writing systems and in everyday English speech. It is the ninth character used in the modern English alphabet, written as a simple vertical stroke in its uppercase form and as a small loop or stroke in lowercase. Beyond its identity as a graphic symbol, I also serves as the single‑letter first‑person pronoun in English, where it uniquely appears capitalized in all positions in a sentence.
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Forms and pronunciation
The letter has two basic shapes: an uppercase I and a lowercase i. In many fonts the lowercase i carries a diacritic dot, known as the tittle, above the main stroke. In English the letter name is pronounced like the common word "eye." As a vowel within words it represents several sounds, depending on dialect and spelling patterns: for example, it can signal the long vowel in "time" or the short vowel in "sit." Typography and handwriting produce many variations in how the stroke and dot are formed.
History and development
I traces its ancestry to ancient scripts. The Latin I developed from the Greek letter Iota, which itself came from the Phoenician sign Yodh. Over centuries the simple vertical mark remained remarkably stable, with changes mainly in cursive forms and ornamentation. In the Roman system the same symbol was used as the numeral for one, a usage that survives in contexts where simple Roman numerals are still shown.
As a pronoun and in examples
In English the single letter I functions as the independent first‑person pronoun referring to the speaker. Unlike most other pronouns, English custom capitalizes I regardless of position. Examples show typical usage:
Variations across languages
Several Turkic and related languages that use a Latin‑based alphabet distinguish between a dotted and a dotless form of this letter. For example, modern Turkish, Azerbaijani, Crimean Tatar and Gagauz treat two kinds of I as separate letters: one with a dot (İ, i) and one without (I, ı). These two forms represent different vowel sounds and are not interchangeable; the distinction affects alphabetical order, spelling, and pronunciation in those languages.
Other roles and notable facts
Beyond alphabetic and pronoun uses, I appears in many technical and cultural contexts: as a numeral in Roman notation, as a symbol in mathematical and scientific expressions, and as a common element in acronyms and abbreviations. In computing and typography designers pay special attention to the difference between uppercase I, lowercase l (ell), and the digit 1 to avoid confusion. For further reading on letterforms, phonetics, and cross‑linguistic orthography see resources linked below.
Related topics and quick links: letter, English, position, alphabet, pronoun.
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| Arm or hand (protosinaitic) | Phoenician Yodh | Greek iota | Etruscan I | Latin I |
In the Proto-Sinaitic script, the letter represents the symbol for a hand with one arm. Already in this alphabet, the symbol was begun to be greatly simplified, so that in part only the bending of the arm and the outline of the hand are recognizable. In the Phoenician alphabet the letter had the name Yodh (hand/arm) and stood for the semi-consonant [j] (as in young).
In the Greek alphabet the yodh was adopted as iota. The Greeks changed the phonetic value of the letter because of their vowel-rich language, it now stood for [i]. Already in the early Greek alphabet from the 7th century BC, the iota lost all affixes and became a simple vertical stroke.
Neither in the Etruscan nor in the Latin alphabet the letter was still substantially changed, the sound value [i] remained.
I longa
The I longa, an I extended beyond the line, was initially used in Latin from Sullan times to indicate the long spoken sound ī as opposed to short ĭ: felꟾcꟾ, vꟾcus. In the course of the imperial period this graphic distinction was lost and the I longa was used as a rarer variant for any i, sometimes also preferred for consonantal i̯ between vowels: eꟾus, eiꟾus.
In Unicode, the character is encoded as U+A7FE LATIN EPIGRAPHIC LETTER I LONGA.
The i dot
The i-dot is usually a small filled circle, but can also be adapted to the style of the respective font. In visual impression, its width is about the same as the stem of the lowercase "i", with a corresponding optical adaptation. Special forms occur, especially in handwriting, such as dash-shaped, ring-shaped, or heart-shaped i-dots. The capital I has no dot.
On the history of the i-dot, Grimm's dictionary states:
"As far as the minuscule is concerned, the i was written without a dash or punctuation until the 11th century. Only then did people begin to mark coinciding dashes with accents in order to prevent confusion. (...) already in the 12th century, the little stroke sometimes appears above the single í, but besides that, i's without stippling still occur frequently, and not infrequently, in older hss. such strokes were added later. the little stroke continued to become the long common punct, but punctures above the i (...) are hardly found before 1350".
- German Dictionary, vol. 4,2 (1877), sp. 2013
Colloquially, it is also referred to as i-Tüpfel or i-Tüpfelchen and in Southern German or Austrian as i-Tüpferl. In a figurative sense, "to dot the i" means to complete or refine something; if someone does this compulsively, he becomes an i-Tüpferlreiter or Tüpflischisser.
In typography, the i-dot in some typefaces merges with preceding letters in certain ligatures, e.g. in the ligatures fi and ffi. In this example, the ascender of the f merges with the i-dot of the following i.
i-dot and diacritical marks
If a diacritical mark (e.g. acute, grave, trema, etc.) is placed on the i, the i-dot is dropped. An i with trema is therefore written with two overdots (ï), not three.
Examples are: boîte (Fr. ), río (Span. ), lunedì (it. ), égoïste (Fr. ), īss (Lat. ), peteĩ (Grn.).
ı without dot
Iı İi
In most languages, the dot on the lowercase i is an integral part of the letter with no special meaning. However, in some languages, including Turkish and Azerbaijani, İ, i (each with a dot) and I, ı (each without a dot) represent two different sounds.
The named HTML character entities are İ for the large İ with a dot and ı for the small ı without a dot.
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AlegsaOnline.com I — the letter and the English pronoun Leandro Alegsa
URL: https://en.alegsaonline.com/art/46316