• an organized military force equipped for fighting on land.

  "the two armies were in position"

  synonyms: armed force, military force, land force, military, soldiery, infantry, militia;

• the branch of a nation's armed services that conducts military operations on land.

  noun: the army

  "an enlisted man in the army"

• a large number of people or things, typically formed or organized for a particular purpose.

  "an army of photographers", "an army of tourists"

  synonyms: crowd, swarm, multitude, horde, mob, gang, throng, mass, flock, herd, pack

Sources: Google