identification
identification certificate（身份证），identification card（身份卡），identification disk（身份圆牌）等里的identification改作identity也可以。但identification和identity意思不同。identity是“身份”，identification是“身份的证明”。He refused to reveal his identity和His identity has not been established里的identity不可改作identification。As he has gone away, his identification is hardly possible里的identification不可改作identity。
