Abjad is a term suggested by
Peter T. Daniels to replace the common terms consonantary or consonantal alphabet or syllabary to refer to the family of scripts called
West Semitic, a type of
writing system in which each symbol stands for a
consonant; the reader must supply the appropriate
vowel. Some linguists consider West Semitic writing a type of alphabet, while others classify it as a separate writing system, while others view it as an unusual sort of syllabary. In popular usage, abjads often contain the word "alphabet" in their names, such as "
Phoenician alphabet" and "
Arabic alphabet."
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