1. 合法的；依法的；法律认可的
    Something that is legitimate is acceptable according to the law.

legitimate

    e.g. The French government has condemned the coup in Haiti and has demanded the restoration of the legitimate government...
           法国政府对海地政变表示谴责，并要求恢复合法政府的地位。
    e.g. The government will not seek to disrupt the legitimate business activities of the defendant.
           政府无意干扰被告的合法经营活动。

2. 合情理的；有道理的；正当的
    If you say that something such as a feeling or claim is legitimate, you think that it is reasonable and justified.

    e.g. That's a perfectly legitimate fear...
           怀有这种恐惧完全在情理之中。
    e.g. The New York Times has a legitimate claim to be a national newspaper.
           《纽约时报》有理由称自己是一份全国性报纸。

3. 婚生的
    A legitimate child is one whose parents were married before he or she was born.

    e.g. We only married in order that the child should be legitimate.
           我们结婚纯粹是为了给孩子一个合法身份。

4. 同legitimize
    To legitimate something means the same as to legitimize it.

    e.g. We want to legitimate this process by passing a law.
           我们希望通过立法来使这一程序合法化。