Alphabet
From Infocentral
An alphabet is a complete standardized set of letters — basic written symbols — each of which roughly represents a phoneme of a spoken language, either as it exists now or as it may have been in the past. There are other systems of writing such as logosyllabic writing, in which each symbol represents a morpheme, or word or a syllable or places the word within a category, and syllabaries, in which each symbol represents a syllable.