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

仮装舞踏会[kasoubutoukai] masquerade ball
仮面舞踏会[kamenbutoukai] masquerade ball
足踏み[ashibumi] stepping
踏まえる[fumaeru] to be based on
踏み外す[fumihazusu] to miss one's footing

踏み固める[fumikatameru] to tread down
踏み荒す[fumiarasu] to trample down
踏み込む[fumikomu] to step into (e.g. someone else's territory)
踏み留まる[fumitodomaru] to stay on
踏出す[fumidasu] to step forward