あっ砕[assai] crushing
圧砕機[assaiki] grinder
噛砕く[kamikudaku] to crunch
玉砕[gyokusai] honourable defeat
撃砕[gekisai] pulverising

砕く[kudaku] to break
砕け[kudake] familiar (informal) (speech style)
砕ける[kudakeru] to break (into pieces)
砕け散る[kudakechiru] to be smashed up
砕石[saiseki] broken stone

零し話[koboshibanashi] complaining
取零す[torikobosu] to lose an easy game
爪で拾って箕で零す[tsumedehirottemidekobosu] penny wise and pound foolish
零落れる[ochibureru] to be ruined
零す[kobosu] to spill

零れる[koboreru] to spill
零下[reika] below zero
零行列[reigyouretsu] zero matrix
零細[reisai] insignificant