Twin pregnancy, the term used for pregnancy involving two fetuses, can be expressed in multiple ways. Some synonyms for twin pregnancy include gemellarity, two-baby pregnancy, dual pregnancy, double pregnancy, and twin gestation. These words can be used interchangeably to convey the same meaning. Although twin pregnancies are considered high-risk, modern medical facilities have made it possible for women to deliver happy, healthy twins. As twin pregnancies have become more common over the years, parents who are expecting twins are often celebrated with excitement by family and friends. Regardless of the choice of words used to describe it, a twin pregnancy is a unique experience that deserves recognition.