Гугл пока выдает следующие значения слова cleavage: расщепление, раскол, слоистость, не согласие или разделение мнений. Что по сути верно, а если ваш контекст предполагает совсем иное?
Cleavage — декольте, или глубокий вырез женской одежды.
Определение кембриджского словаря:
The narrow space between a woman’s breasts, that is seen when she wears a piece of clothing that does not cover the top of them.
Примеры:
Clare was wearing a low-cut dress that showed off her cleavage.
She has nice cleavage.
Women seem to be showing off their cleavage more than ever before.
I recorded a video of her clveage to see later.
How much cleavage is good cleavage?
Don’t look at my cleavage!
I am not responsible, if you focus on my cleavage.