ˈɑː(ɹ)sənəl ˈɪn.vən.tɹi ˈɪn.vənˌtɔ.ɹi a place where arms are manufactured a military structure where arms and ammunition and other military equipment are stored and training is given in the use of arms all the weapons and equipment that a country has a collection of resources he dipped into his intellectual armory to find an answer