1 sentence for 旗号 (qí​hào — flag signal)

1. 海军士兵通过挥动手中的小旗发出了旗号。

   hǎi​jūn shì​bīng tōng​guò huī​dòng shǒu zhōng de xiǎo qí fā​chū le qí​hào.

   The sailors signaled by waving small flags.

   Source: Dong Chinese Dictionary