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???????????????????????????????????????????????????????????????????(????)????????????????????????????????????[????????] ??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????

When the ancient Greeks adopted the alphabet, they'd no use for your letter to stand for the glottal stop—the consonant sound that the letter denoted in Phoenician together with other Semitic languages, and which was the primary phoneme with the Phoenician pronunciation of your letter—in order that they used their version of the sign to signify