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

微風[bifuu] gentle breeze
隠微[inbi] obscurity
微温い[nurui] lukewarm
機微[kibi] subtleties
極微[kyokubi] microscopic

顕微[kenbi] microscopic
顕微鏡[kenbikyou] microscope
衰微[suibi] decline
微意[bii] small token (of gratitude)
微温[bion] lukewarmness