握り潰し[nigiritsubushi] shelving
胃潰瘍[ikaiyou] stomach ulcer
圧潰す[oshitsubusu] to squash
暇潰し[himatsubushi] waste of time
潰滅[kaimetsu] destruction

潰乱[kairan] corruption (of order, customs, etc.)
丸潰れ[marutsubure] complete ruin
顔を潰す[kaowotsubusu] to make somebody lose face
泣潰す[nakitsubusu] to cry one's eyes out
乗り潰す[noritsubusu] to ride (a horse) to death

靴磨[kutsumigaki] shoeshine
切磋琢磨[sessatakuma] cultivate one's character by studying hard
雪達磨[yukidaruma] snowman
達磨[daruma] daruma
不磨[fuma] permanence

磨き砂[migakizuna] polishing sand
磨き紙[migakigami] emery paper
磨き上げる[migakiageru] to polish up
磨き粉[migakiko] polishing powder
磨く[migaku] to polish