It's important to be mindful of the context and the potential for misunderstandings when using this word.
Here are some examples of how "cleavage" can be used in a sentence:
Scientific/Geological:
* "The geologist studied the cleavage of the rock to determine its structure."
* "The earthquake caused a cleavage in the earth's crust."
Figurative/Metaphorical:
* "The new policy caused a cleavage between the two groups."
* "The writer used a cleavage in the plot to introduce a new character."
Informal/Controversial:
* "The actress was known for her cleavage on the red carpet." (This usage can be considered objectifying and disrespectful.)
It's generally best to avoid using "cleavage" in casual conversation, especially when referring to someone's body.
If you're looking for a more neutral way to describe the exposed area of a woman's chest, you can use terms like "decolletage," "neckline," or "chest."