打ち撒ける[buchimakeru] to throw out (everything)
打つかる[butsukaru] to strike against
打っ付ける[uchitsukeru] to knock
安打[anda] safe hit (baseball)
１打[ichida] stroke

一打ち[hitouchi] stroke
一網打尽[ichimoudajin] (a) big haul
殴打[ouda] hit
火打石[suiseki] flint

一斉検挙[isseikenkyo] wholesale arrest
下検査[shitakensa] preliminary inspection
下検分[shitakenbun] preliminary examination
検める[aratameru] to change
勘検[kanken] investigation

区検[kuken] local prosecutor
検診[kenshin] physical examination
検印[kenin] seal of approval
検疫[keneki] quarantine
検閲[kenetsu] censorship

暗証[anshou] code
暗証化[anshouka] encryption
暗証番号[anshoubangou] personal identification number
証し[shirushi] mark
印鑑証明[inkanshoumei] certification of official registration of a seal

引証[inshou] quotation
仮受取証[kariuketorishou] temporary receipt
会員証[kaiinshou] membership certificate
外国人登録証明書[gaikokujintourokushoumeisho] certificate of alien registration
確証[kakushou] positive proof

鍵を掛ける[kagiwokakeru] to lock
鍵穴[kagiana] keyhole
鍵盤[kenban] keyboard (e.g. piano, computer)
黒鍵[kokken] black keys
打鍵[daken] keystroke

合鍵[aikagi] duplicate key
鍵っ子[kagikko] latchkey child
鍵束[kagitaba] bunch of keys
関鍵[kanken] locking doors