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

パン粉[panko] breadcrumbs
メリケン粉[merikenko] (wheat) flour
黄な粉[kinako] soy flour
加糖粉乳[katoufunnyuu] sweetened powdered milk
火の粉[hinoko] sparks

花粉[kafun] pollen
花粉症[kafunshou] hay fever
滑石粉[kassekiko] talcum powder
くず粉[kuzuko] kudzu starch
強力粉[kyourikiko] bread flour