noun (plural armies)
1 [C+sing./pl.v.] a large organized group of soldiers who are trained to fight on land:
The two opposing armies faced each other across the battlefield.
2 (the army) [sing.+sing./pl.v.] the part of a country's armed forces that fights on land:
Her husband is in the army. * After leaving school, Mike went into the army. * an army officer * army barracks / bases
3 [C+sing./pl.v.] a large number of people or things, especially when they are organized in some way or involved in a particular activity:
an army of advisers / volunteers * An army of ants marched across the path.
