あっ縮[asshuku] compression
圧縮空気[asshukukuuki] compressed air
圧縮性[asshukusei] compressibility
圧縮率[asshukuritsu] compressibility
畏縮[ishuku] wince

音声圧縮[onseiasshuku] voice compression
強縮[kyoushuku] tetanus
恐縮[kyoushuku] feeling obliged
凝縮[gyoushuku] condensation
緊縮[kinshuku] shrinkage

ミサイル防衛[misairubouei] missile defence
共同防衛[kyoudoubouei] joint defense
攻防[koubou] offense and defense
攻防戦[koubousen] battle
国防[kokubou] national defence

国防総省[kokubousoushou] National Military Establishment
国防長官[kokubouchoukan] Secretary of Defence (Defense)
国防費[kokubouhi] defence expenditure
砂防[sabou] erosion control
酸化防止剤[sankaboushizai] antioxidant