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

お大事に[odaijini] take care of yourself
暗黒大陸[ankokutairiku] Dark Continent (i.e. Africa)
伊勢大神宮[isedaijinguu] the Grand Shrines of Ise
伊勢大廟[isetaibyou] the Grand Shrines of Ise
偉大[idai] greatness

医科大学[ikadaigaku] medical school
医大[idai] medical university
井の中の蛙大海を知らず[inonakanokawazutaikaiwoshirazu] parochial
一大[ichidai] one large ...
一大事[ichidaiji] serious affair

粗っぽい[arappoi] rough
粗木[araki] logs in bark
骨粗しょう症[kotsusoshoushou] osteoporosis
粗漏[sorou] careless
粗い[arai] coarse

粗い細工[araisaiku] rough workmanship
粗い肌[araihada] rough skin
粗い網[araiami] coarse net
粗悪[soaku] coarse
粗悪品[soakuhin] inferior goods