金無垢[kinmuku] pure gold
歯垢[shikou] (dental) plaque
耳垢[mimiaka] earwax
手垢[teaka] finger marks
無垢[muku] purity

頭垢[fuke] dandruff
垢抜ける[akanukeru] to refine
純真無垢[junshinmuku] pure
寒垢離[kangori] cold-water ablutions performed in winter

引抜き[hikinuki] hiring from another company
引抜く[hikinuku] to extract
海抜[kaibatsu] height above sea level
間抜け[manuke] stupidity
奇抜[kibatsu] novel

駆抜ける[kakenukeru] to run past from behind
堀り抜く[horinuku] to dig through
剣を抜く[tsurugiwonuku] to draw a sword
堅忍不抜[kenninfubatsu] indomitable perseverance
見抜く[minuku] to see through