Cleavage in general refers to a division or separation of form. Its usage is heavily dependent on cultural context, where it may refer to:

* Partial exposure of part of the body:
o Cleavage (breasts), partial exposure of the separation between a woman's breasts.
+ Cleavage enhancement, methods of making a person's breast cleavage look better than it really is.
o Buttock cleavage
o Toe cleavage
* Cleavage (crystal), in mineralogy and materials science, is a process of splitting a single crystal.
* Cleavage (geology), Foliation perpendicular to stress as a result of ductile deformation. e.g. shales (shists)
* Cleavage (embryo), in embryology, is the division of cells in the early embryo.
* Cleavage (fiber), in optical fibers.
* Teeth cleavage or tooth cleavage, slang for Diastema (dentistry), the gap between a person's two front teeth.
* In cell biology, the Cleavage furrow is the indentation that begins the process of cleavage, by which animal cells undergo cytokinesis.
* Bond cleavage in chemistry and biochemistry
* Cleavage (politics) The divisions of society that cause people to vote differently