A logography (also called a logosyllabary) is written using logograms—written characters which represent individual words, morphemes or certain syllables. For example, in Mayan, the glyph for "fin", pronounced ka, was also used to represent the syllable ka whenever the pronunciation of a logogram needed to be indicated. Many logograms have an ideographic component (Chinese "radicals", hieroglyphic "determiners"). In Chinese, about 90% of characters are compounds of a semantic (meaning) element called a radical with an existing character to indicate the pronunciation, called a phonetic. However, such phonetic elements complement the logographic elements, rather than vice versa.
