鴛えん鴦おうえんおうFreq.FrequencyTop 100,000Meanings1nounmandarin duckRefers specifically to the mandarin duck (Aix galericulata). Often used in the context of marital harmony because these ducks are believed to mate for life.See also: オシドリ鴛えん鴦おうは池いけでつがいで泳およいでいた。A pair of mandarin ducks were swimming in the pond.