偉挙[ikyo] excellent deeds
一挙[ikkyo] one effort
一挙一動[ikkyoichidou] one's every action
一挙手一投足[ikkyoshuittousoku] slight effort
一挙両得[ikkyoryoutoku] killing two birds with one stone

一斉検挙[isseikenkyo] wholesale arrest
科挙[kakyo] Chinese higher civil service examinations
快挙[kaikyo] brilliant achievement
旗挙[hataage] raising an army
挙げた[ageta] brought up (e.g. topic)

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