Paternity suit is a legal proceeding that is initiated to establish the father of a child. However, there are certain synonymous terms to describe it. One of them is "child support case." This term specifically refers to the legal process of seeking financial support from the child's father to cover the child's basic needs. Another synonym is "fatherhood case." This refers to the legal method of determining the biological responsibility of a man to the child in question. Additionally, there is a term called "parentage lawsuit." It is an alternative to paternity suit that can be used to describe a legal action taken to determine the biological relationship between a parent and their child.