1. A Semitic alphabet used since the 5th century BC for writing the Hebrew language (and later for writing Yiddish and Ladino)
   - Hebrew alphabet, Hebrew script

Type of: alphabet, unicameral script

• organized labour
• organized religion
• organizer
• organo-
• organogenesis
• organogram
• organoleptic
• organon
• organophosphate
• organophosphate nerve agent
• organs
• organum
• organza
• organzine
• orgasm
• orgasmic
• orgiastic
• orgy
• oribi
• orichalc
• orichalcum
• oriel
• oriel window
• orient
• oriental