1. (因违反规定等)被没收，丧失
    If you forfeit something, you lose it or are forced to give it up because you have broken a rule or done something wrong.

forfeit什么意思

    e.g. He was ordered to forfeit more than £1.5m in profits...
           下令没收了他 150 多万英镑的盈利。
    e.g. He argues that murderers forfeit their own right to life.
           他辩称杀人犯本身已经丧失了生存的权利。

2. (尤指为获得他物)主动放弃
    If you forfeit something, you give it up willingly, especially so that you can achieve something else.

    e.g. He has forfeited a lucrative fee but feels his well-being is more important...
           他主动放弃了可观的酬金，觉得自己的健康更加重要。
    e.g. Do you think that they would forfeit profit in the name of safety?
           你认为他们会为了安全而放弃利润吗？

3. 罚金;没收物
    A forfeit is something that you have to give up because you have done something wrong.

    e.g. That is the forfeit he must pay.
           这是他必须付的罚金。