Genus Alca refers to a group of seabird species that are commonly known as auks. Synonyms for Genus Alca include the term Alcids, which is a family of seabirds that includes several species of auks. Additionally, some other synonyms for Genus Alca include the term "alcine," which refers to the genus Alca and its various species, as well as "alcid," which is a general term used to describe any member of the Alcidae family, including those within the Genus Alca. These synonyms can be useful for individuals who are studying these seabirds or who are simply interested in learning more about them.