Boar's mate refers to a female pig that is bred with a male boar for the purpose of producing piglets. There are several synonyms for this term, including sow, female hog, breeding sow, and pig queen. These terms are commonly used in the pig farming industry to describe female pigs that are specifically chosen for their breeding qualities. It is important to note that boar's mate is a gendered term that reinforces traditional gender roles and stereotypes. More inclusive language, such as breeding pig or female breeder, may be preferred in some contexts.