"First-named" refers to the person or thing mentioned first in a list or grouping. Synonyms for "first-named" include "initially mentioned," "primary," "leading," "foremost," "topmost," and "preeminent." These words can be used in various contexts, such as in legal documents to clarify the order of individuals or entities mentioned, in academic papers when identifying the most important variables, or in literary works to emphasize the significance of a particular character or setting. Choosing the right synonym to replace "first-named" depends on the intended context and the degree of importance or priority assigned to the subject mentioned.