一掃[issou] clean sweep
真空掃除機[shinkuusoujiki] vacuum cleaner
清掃[seisou] cleaning
清掃車[seisousha] garbage truck
清掃夫[seisoufu] garbage man

掃き寄せる[hakiyoseru] to sweep up
掃き集める[hakiatsumeru] to sweep up together
掃き出す[hakidasu] to release
掃き立て[hakitate] being newly-swept
掃溜[hakidame] rubbish heap

震盪[shintou] shock
掃盪[soutou] cleaning up
盪ける[torokeru] to melt (to a liquid)
盪尽[toujin] squander

盪盪[toutou] vast
脳震盪[noushintou] cerebral concussion
眼球振盪[gankyuushintou] nystagmus (rapid involuntary eye movements)
盪す[torokasu] to melt (steel, etc.)