[1] : The Collaborative International Dictionary of English v.0.48

munition \muni"tion\, n. f., munition of war, l. munitio a
   fortifying, fortification, fr. munire to fortify, defend with
   a wall; cf. moenia walls, murus for moirus a wall, and skr.
   mi to fix, make firm. cf. ammunition.
   1. fortification; stronghold. obs.
      1913 webster

            his place of defense shall be the munitions of
            rocks.                                --is. xxxiii.
                                                  16.
      1913 webster

   2. whatever materials are used in war for defense or for
      annoying an enemy; ammunition; also, stores and
      provisions; military stores of all kinds.
      1913 webster

            the bodies of men, munition, and money, may justly
            be called the sinews of war.          --sir w.
                                                  raleigh.
      1913 webster
see also:
ammunition 

[2] : WordNet (r) 2.0

munition
     n 1: weapons considered collectively syn: weaponry, arms, implements
          of war, weapons system
     2: defensive structure consisting of walls or mounds built
        around a stronghold to strengthen it syn: fortification
     v : supply with weapons
see also:
weaponry arms implements of war weapons system fortification 

[3] : Moby Thesaurus II by Grady Ward, 1.0

19 moby thesaurus words for "munition":
   accouter, appoint, arm, dress, equip, fit, fit out, fit up,
   furnish, gear, heel, man, outfit, prepare, rig, rig out, rig up,
   staff, turn out

Munition >> M Words
Munition, definition of term: Munition
munition_pag1.html