| CUC | an instrument of punishment consisting of a chair in which offenders were ducked in water |
|---|---|
| CUC | a man whose wife committed adultery |
| CUC | be sexually unfaithful to one's partner in marriage |
| CUC | any of numerous European and North American birds having pointed wings and a long tail |
| CUC | a man who is a stupid fool |
| CUC | repeat monotonously, like a cuckoo repeats his call |
| CUC | Eurasian plant with heart-shaped trifoliate leaves and white pink- or purple-veined flowers |
| CUC | clock that announces the hours with a sound like the call of the cuckoo |
| CUC | common perennial native to Europe and western Asia having usually pink flowers with ragged petals |
| CUC | a bitter cress of Europe and America |
| CUC | pejorative terms for an insane asylum |
| CUC | a bee that is parasitic in the nests of bumblebees |