| Noun | 1. | troop - a group of soldiersarmy unit - a military unit that is part of an army shock troops - soldiers who are specially trained and armed to lead an assault | |
| 2. | troop - a cavalry unit corresponding to an infantry companyarmy unit - a military unit that is part of an army cavalry - a highly mobile army unit | |
| 3. | troop - a unit of girl or boy scoutssocial unit, unit - an organization regarded as part of a larger social group; "the coach said the offensive unit did a good job"; "after the battle the soldier had trouble rejoining his unit" | |
| 4. | troop - an orderly crowd; "a troop of children"crowd - a large number of things or people considered together; "a crowd of insects assembled around the flowers" | |
| Verb | 1. | troop - march in a procession; "the veterans paraded down the street"march, process - march in a procession; "They processed into the dining room" | |
| 2. | troop - move or march as if in a crowd; "They children trooped into the room"march - walk fast, with regular or measured steps; walk with a stride; "He marched into the classroom and announced the exam"; "The soldiers marched across the border" | |