金鱼

goldfish

surname Yu

fish / CL:條|条[tiao2],尾[wei3]

surname Jin / surname Kim (Korean) / Jurchen Jin dynasty (1115-1234)

gold / chemical element Au / generic term for lustrous and ductile metals / money / golden / highly respected / one of the eight categories of ancient musical instruments 八音[ba1 yin1]

pedophile (slang, referring to the case of a Hong Kong child abductor who lured girls with the prospect of seeing "goldfish" in his apartment)

snapdragon (Antirrhinum majus)

hornwort (Ceratophyllum demersum)