| CRU | (botany) of or relating to or belonging to the plant family Cruciferae |
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| CRU | any of various plants of the family Cruciferae |
| CRU | a vegetable of the mustard family: especially mustard greens |
| CRU | representation of the cross on which Jesus died |
| CRU | catfish of the Caribbean area |
| CRU | the infliction of extremely painful punishment or suffering |
| CRU | the act of executing by a method widespread in the ancient world |
| CRU | the death of Jesus on the cross |
| CRU | shaped like a cross |
| CRU | criticize harshly or violently |
| CRU | treat cruelly |
| CRU | kill by nailing onto a cross |