Legionaries are members of a legion, which is a large group of soldiers often organized in the Roman military. There are many synonyms that can be used to describe these soldiers, including troops, soldiers, fighters, warriors, and defenders. Each of these words highlights a different aspect of the legionaries' role in the military, from their ability to fight and protect their allies to their commitment to their cause and their resilience under fire. Other possible synonyms include foot soldiers, infantry, and forces, each of which emphasizes the legionaries' position and function within the larger military organization. Overall, these synonyms help to paint a vivid picture of the hardworking, dedicated soldiers who make up the legions of the Roman military.