regular army re·gu·la·rarmy fairly common noun 1. a permanent organization of the military land forces of a nation or state Synonymsarmyregular armyground forces Related words Broader terms military service Narrower terms hoststanding armyUnion ArmyConfederate ArmyContinental ArmyUnited States Army Part of army unitcorps WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.