A large group is a collective of people or things that are gathered together in one place. An ARRAY is a large group of objects arranged in rows and columns, while a FLOCK is a large group of animals, usually birds. A CROWD is a large group of people, and a TROOP is a large group of soldiers or other military personnel. A BEVY is a large group of people or things, and a MASS is a large group of people or things that are closely packed together. A PASSEL is an old-fashioned term for a large group of people or things, and an ARMY is a large group of soldiers. A HOST is a large group of people or things, and a HORDE is a large group of people or animals that move together.