伊斯坦堡 yīsītǎnbǎo Istanbul Origin Definitions Defs Strokes Stroke Words Sentences Sents 伊 yī phonetic 斯 sī phonetic 坦 tǎn phonetic 堡 bǎo phonetic fortress (bound form) fort; fortress; castle; also used to transliterate names ending in -burg or -berg, or as an abbreviation for 汉堡 hànbǎo