When talking about a male descendant, there are several synonyms that can be used to describe this relationship. For instance, a male child of a person could be identified as their son, heir, or progeny. A male descendant can also be referred to as a grandson, great-grandson, or even great-great-grandson depending on how many generations have passed. Additionally, the term male offspring is another way to refer to a male descendant of someone's family line. It is important to note that while these terms may have slightly different connotations, they all refer to the same basic familial relationship of a male ancestor and his descendants.