(n): weaponry used by military or naval force
(n): a military structure where arms and ammunition and other military equipment are stored and training is given in the use of arms
(n): any facility servicing military forces
(n): a place where arms are manufactured
(n): factory where metal castings are produced
The word was first used by Venetians in the early 12th century for their shipbuilding works. They themselves borrowed it from the Arabic dar as-sina'ah ("house of manufacture").