丸砥石[marutoishi] grindstone
合わせ砥[awasedo] double whetstone
青砥[aoto] medium-grade millstone
中砥[nakato] medium-grade millstone
剃刀砥[kamisorido] razor strop

砥石[toishi] whetstone
砥ぐ[togu] to sharpen
油砥石[aburatoishi] oilstone
荒砥[arato] rough grindstone
砥粉[tonoko] polishing powder

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