An arsenal is a place where arms and ammunition are made, maintained and repaired, stored, or issued, in any combination, whether privately or publicly owned. Arsenal and armoury (British English) or armory (American English)[1][2] are mostly regarded as synonyms, although subtle differences in usage exist.
A sub-armory is a place of temporary storage or carrying of weapons and ammunition, such as any temporary post or patrol vehicle that is only operational in certain times of the day.[3]
^Soanes, Catherine and Stevenson, Angus (ed.) (2005). Oxford Dictionary of English, 2nd Ed., revised, Oxford University Press, Oxford, New York, p. 85. ISBN978-0-19-861057-1.