grapheme

1. (Unicode) A sequence of one or more code points that are processed and displayed as a single graphical unit of a writing system.Examples: "Even so, it's important for Unicode-friendly applications to deal with text in their user interfaces as a series of graphemes and not as a series of Unicode code points […]"Synonyms: grapheme cluster

2. (linguistics) In alphabetic writing, the shortest group of letters composing a phoneme.Examples: "The term for a letter or combination of letters which represents a particular sound is a “grapheme”. Languages like Italian and Serbo-Croatian have very simple “grapheme–phoneme conversion” rules."; "In terms of specific graphemes, Table 2.5 identifies the most frequent inconsistent phoneme-to-grapheme patterns."