塵入[gomiire] trashcan
塵箱[gomibako] garbage can
黄塵[koujin] dust (in air)
灰塵[haijin] ashes and dust
含塵率[ganjinritsu] dust content

吸塵[kyuujin] dust vacuuming
後塵[koujin] second fiddle
市塵[shijin] city dust
塵芥[jinkai] rubbish

くっ着ける[kuttsukeru] to attach
バス発着場[basuhacchakujou] depot
逢着[houchaku] encounter
悪戯着[itazuragi] rompers
圧着[acchaku] crimp

圧着端子[acchakutanshi] crimp contact
安着[anchaku] safe arrival
伊達着[dategi] showy clothes
移着[ichaku] adhering or embedding of wear debris in the opposing surface
磯巾着[isoginchaku] sea anemone

ミサイル防衛[misairubouei] missile defence
共同防衛[kyoudoubouei] joint defense
攻防[koubou] offense and defense
攻防戦[koubousen] battle
国防[kokubou] national defence

国防総省[kokubousoushou] National Military Establishment
国防長官[kokubouchoukan] Secretary of Defence (Defense)
国防費[kokubouhi] defence expenditure
砂防[sabou] erosion control
酸化防止剤[sankaboushizai] antioxidant