cleavage
US /ˈkliː.vɪdʒ/
UK /ˈkliː.vɪdʒ/

1.
가슴골, 유방골
the hollow between a woman's breasts, especially as exposed by a low-cut garment.
:
•
Her dress showed a lot of cleavage.
그녀의 드레스는 많은 가슴골을 드러냈다.
2.
분열, 분리, 틈새
a division or schism, especially a split between two opposing sides.
:
•
The political party suffered a deep cleavage over the new policy.
그 정당은 새 정책을 두고 깊은 분열을 겪었다.