identity表示身份。
identification表示认同、确认;鉴定、识别;身份证明。
例句:
His identity couldn't be determined.
这个人的身份无法确定。
His identity was not released.
他的身份并没有公开。
May I see your identification?
能不能给我看看你的身份证件?
Early identification of a disease can prevent death and illness.
病症的及早诊断可避免死亡与病痛。
The woman who was on passport control asked me if I had any further identification.
检查护照的女士问我是否有进一步的身份证明。