iris (of an eye)

rainbow

mussel

(lit. and fig.) to siphon

iridescence; iris (of the eye)

arched bridge

rainbow trout (Oncorhynchus mykiss)

Changhong (brand)

(loanword) neon lights (abbr. for 霓虹燈|霓虹灯[ni2 hong2 deng1]); (literary) rainbow

(loanword) neon lights

(neologism c. 2017) (slang) over-the-top praise

rainbow flag, aka LGBT pride flag

Hongkou district, central Shanghai

siphon

(slang) Japan (loanword from the Japanese word for Japan, 日本 "Nihon")

Huang Binhong (1865-1955), art historian and literati painter

the LGBT+ community

(bird species of China) rainbow bee-eater (Merops ornatus)

the two mass scuttling operations carried out by the German navy: the scuttling of the German fleet at Scapa Flow in 1919 and Operation Regenbogen, the scuttling of U-boats in 1945

(bird species of China) coconut lorikeet (Trichoglossus haematodus)

(bird species of China) Himalayan monal (Lophophorus impejanus)

spirit reaches to the rainbow; full of noble aspiration and daring

(bird species of China) Chinese monal (Lophophorus lhuysii)

iridovirus

Hongqiao Airport (Shanghai)

(bird species of China) Sclater's monal (Lophophorus sclateri)

(bird species of China) rainbow lorikeet (Trichoglossus moluccanus)