A unilateral headache typically refers to a type of headache that occurs on one side of the head. However, there are several synonyms for this term. It is often referred to as a one-sided headache, reflecting its characteristic of affecting only one side of the head. Another synonym commonly used is a one-sided head pain, emphasizing the discomfort experienced on just one side. Additionally, it can be called a single-sided headache, denoting its unilaterally-focused nature. Some may refer to it as a solo migraine or a one-way headache, alluding to its distinctiveness and differentiation from other types of headaches. Therefore, these synonymous terms provide alternative ways to describe the phenomenon of a unilateral headache.