mu ‧ ni ‧ tions /mjuːˈnɪʃ ə nz $ mjʊ-/ BrE AmE noun [plural]
[ Date: 1500-1600 ; Language: French ; Origin: munition , from Latin , from munire 'to make (a building) strong against attack' , from moenia 'walls' ]
military supplies such as bombs and guns ⇨ ammunition :
a munitions factory
—munition adjective [only before noun]