n.

1. 劈开；开裂[U]
2. 裂开的方式[U]
3. 裂缝；分裂[C]
   a sharp cleavage in society between rich and poor

   贫富之间明显的分裂

4. 乳沟
5. 【矿】解理[U]
6. 【生】卵裂；细胞分裂

n.

1. a marked difference or division between people.
2. the cleft between a woman's breasts.
3. Biology  cell division, especially of a fertilized egg cell.
4. the splitting of rocks or crystals in a preferred plane or direction.