cyrillic,
cyrillic alphabet an alphabet derived from the Greek alphabet and used for writing Slavic languages (Russian, Bulgarian, Serbian, Ukrainian, and some other Slavic languages)
arabic alphabet the alphabet of 28 characters derived from Aramaic and used for writing Arabic languages (and borrowed for writing Urdu)
An alphabet is a standardized set of letters—basic written symbols or graphemes—each of which roughly represents a phoneme in a spoken language, either as it exists now or as it was in the past. There are other systems, such as logographies, in which each character represents a word, morpheme, or semantic unit, and syllabaries, in which each character represents a syllable.
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Alphabet A complete standardized set of letters each of which roughly represents a phoneme of a spoken language.