缺け[kake] fragment
缺ける[kakeru] to be chipped
欠缺[kenketsu] lacuna

法の欠缺[hounokenketsu] gap in the law
記録欠缺の主張[kirokukenketsunoshuchou] alleging diminution
欠缺利札[kenketsurisatsu] invalid coupon

緩衝[kanshou] buffered
緩衝器[kanshouki] shock absorber
緩衝地帯[kanshouchitai] buffer zone
刺衝[shishou] stabbing
衝撃[shougeki] shock

衝撃波[shougekiha] shock wave
衝動[shoudou] impulse
衝動行為[shoudoukoui] shock action
衝動買い[shoudougai] impulsive buying
衝突[shoutotsu] collision