Arcus Air is a regional airline based in Germany. Synonyms for the term "Arcus Air" could include various words that describe its purpose and operations. For example, one synonym could be "regional carrier", highlighting its focus on serving specific geographic areas. Additionally, it could be referred to as a "domestic airline", emphasizing its operations within a particular country. Another synonym could be "commuter airline", as it may specialize in shorter flights connecting smaller cities. "Regional transportation provider" could also be used to describe Arcus Air, encompassing its role in facilitating travel between different areas. Ultimately, these synonyms help convey the essence and significance of Arcus Air in the aviation industry.