Excern pertains to the act of secreting a substance or a hormone from a gland or cell. There are several synonyms for the word excern, including secrete, excrete, eject, discharge, and emit. The term secrete means to produce and discharge a substance from a gland or cell, while the word excrete refers to the process of eliminating waste or harmful substances from the body. On the other hand, the term eject means to forcefully discharge something, while discharge and emit both imply the release of something from its original position. These words are commonly used in the field of medicine, biology, and chemistry to describe the process of excernment.