Koine Greek[a] (ἡ κοινὴ διάλεκτος, hē koinḕ diálektos, lit. 'the common dialect'),[b] also variously known as Hellenistic Greek, common Attic, the Alexandrian dialect, Biblical Greek, Septuagint Greek or New Testament Greek, was the common supra-regional form of Greek spoken and written during the Hellenistic period, the Roman Empire and the early Byzantine Empire. - Koine Greek
日本では通称「コイネー」。