Here are some examples:
* The blunt end of the pencil was worn down. (Here, "blunt" refers to the dull, unpointed end of the pencil.)
* He smoked a blunt after dinner. (In this case, "blunt" is slang for a marijuana cigarette.)
However, "blunt" is more commonly used as an adjective, meaning direct or frank in speech or manner.
For example:
* She gave me a blunt answer to my question.
* He's known for his blunt honesty.