to say or think that someone or something is a different person or thing to the person or thing that you said or thought they were before

Some teeth that scientists had thought belonged to crocodiles have been reidentified as belonging to a dinosaur. 一些科学家曾认为属于鳄鱼的牙齿现已被重新鉴定为属于恐龙。

We now had enough evidence to reidentify the body.

to say again who or what someone or something is

Let me just reidentify tonight's speaker. 让我重新确认一下今晚的发言人。

We need to re-identify the main issue for the public.

to recognize someone or something that you have seen or heard before

Our memories help us to reidentify the things we encounter on different occasions.

I found it hard to re-identify the characters after the commercial break. 我发现很难在广告中断后再分清角色。