Here's a breakdown of what it means:
* Scientifically: Swine are mammals belonging to the genus *Sus*.
* Domestically: They are raised for meat (pork), bacon, ham, and other products.
* Figuratively: The word "swine" can also be used as a derogatory term for a person considered to be dirty, greedy, or immoral. This usage is often considered offensive.
So, while "swine" is a straightforward term for pigs, it's important to be mindful of its potential negative connotations.