虹 (w)

(hóng) rainbow

虹口区 (w)

(hóngkǒuqū) Hongkou district, central Shanghai

虹吸 (w)

(hóngxī) siphon

虹吸管 (w)

(hóngxīguǎn) siphon

虹桥 (w)

(hóngqiáo) Hongqiao, the name of numerous entities, notably a major airport in Shanghai, and a district in Tianjin

虹桥机场 (w)

(hóngqiáojīchǎng) Hongqiao Airport (Shanghai)

虹膜 (w)

(hóngmó) iris

虹鳟 (w)

(hóngzūn) rainbow trout (Oncorhynchus mykiss)