[ˈkliːvɪdʒ], (Noun)

Definitions:
- the hollow between a woman's breasts when supported, especially as exposed by a low-cut garment
(e.g: the suit showed her cleavage due to its square neckline)

- a sharp division; a split
(e.g: the old cleavage between the forces of the right and left)


Phrases:

Origin:
early 19th century (in cleavage): from cleave + -age. cleavage is first recorded in the 1940s, in discussion of US film censorship