A member of an identified subset of a coded character set, intended for combination with the preceding or following graphic character, or with a sequence of combining characters preceded or followed by a non-combining character.
A character that graphically combines with a preceding base character. These characters are not used in isolation. They include such characters as accents, diacritics, Hebrew points, Arabic vowel signs, and Indic matras.
In digital typography, combining characters are characters that are intended to modify other characters. The most common combining characters in the latin script are the combining diacritical marks (including combining accents).