Italian orthography uses 21 letters of the 26-letter Latin alphabet to write the Italian language. This article focuses on the writing of Standard Italian, based historically on the Florentine dialect, and not the other Italian dialects.
The letter Î in the original version of the Constitution of the Italian Republic in the heading Principî Fondamentali.
An Italian handwriting script, taught in primary school
A diacritic is a glyph added to a letter or to a basic glyph. The term derives from the Ancient Greek διακριτικός, from διακρίνω. The word diacritic is a noun, though it is sometimes used in an attributive sense, whereas diacritical is only an adjective. Some diacritics, such as the acute ⟨á⟩, grave ⟨à⟩, and circumflex ⟨â⟩, are often called accents. Diacritics may appear above or below a letter or in some other position such as within the letter or between two letters.
Hangul, the Korean alphabet
German keyboard with umlaut letters
Blackboard used in class at Harvard shows students' efforts at placing the ü and acute accent diacritic used in Spanish orthography.