[旗, qíㄑㄧˊ] banner; flag; (in Qing times) refers to Manchurian ruling class, from 八旗 eight banners; administrative subdivision in inner Mongolia equivalent to 縣|县 county, See Also: 八旗, 縣, 县#2886
[花旗, huā qíㄏㄨㄚ ㄑㄧˊ] the Stars and Stripes (US flag); by extension, the United States of America; abbr. for Citibank 花旗銀行|花旗银行, See Also: 花旗銀行, 花旗银行#12278
[旗号 / 旗號, qí hàoㄑㄧˊ ㄏㄠˋ] lit. a banner to distinguish an army unit or the name of its general; fig. to act in the name (of an idea or an organization); to fly the flag (as a cover for shady business); used for 旗語|旗语 semaphore, See Also: 旗語, 旗语#17056