Noun Definitionarsenal1.Definition: a military structure where arms and ammunition and other military equipment are stored and training is given in the use of armsRelated Noun(s):armory, armouryCategory: Objects2.Definition: a place where arms are manufacturedRelated Noun(s):armory, armouryCategory: Objects3.Definition: all the weapons and equipment that a country hasRelated Noun(s):armory, armouryCategory: Objects