虹

hòng
  1. (obsolete on its own in Standard Chinese) to fester
  2. only used in 虹洞
  3. to fester

Wiktionary

Homographs

虹 hóng rainbow
虹 gòng

Containing this entry

虹桥 Hóngqiáo Hongqiao, the name of numerous entities, notably a major airport in Shanghai, and a district in Tianjin
月虹 yuèhóng
雾虹 wùhóng
虹霓 hóngní
天虹 tiānhóng
虹桥 hóngqiáo
出虹 chūhóng
七彩虹 qīcǎihóng
气势如虹 qìshìrúhóng
长虹 chánghóng
虹口 Hóngkǒu
双虹 shuānghóng
虹神星 Hóngshénxīng