1. 离弃；遗弃；抛弃
    If you abandon a place, thing, or person, you leave the place, thing, or person permanently or for a long time, especially when you should not do so.

    e.g. He claimed that his parents had abandoned him...
           他声称父母遗弃了他。
    e.g. The road is strewn with abandoned vehicles.
           道路上满是弃置的车辆。

2. 中途放弃，中止（活动、工作等）
    If you abandon an activity or piece of work, you stop doing it before it is finished.

abandon的近义词

    e.g. The authorities have abandoned any attempt to distribute food...
           当局中止了分发食物的尝试。
    e.g. The scheme's investors, fearful of bankruptcy, decided to abandon the project.
           因为担心破产，该计划的投资者决定放弃这个项目。

3. 放弃（想法或思路）
    If you abandon an idea or way of thinking, you stop having that idea or thinking in that way.

    e.g. Logic had prevailed and he had abandoned the idea.
           最终理智占了上风，他打消了那个念头。

4. 放纵；使沉湎于
    If you abandon yourself to an emotion, you think about it a lot and feel it strongly, especially when other people might think you are wrong to do so.

abandon什么意思

    e.g. We are scared to abandon ourselves to our feelings in case we seem weak or out of control.
           我们不敢放纵自己的情感，以免显得太过软弱或缺乏自制。

5. 放任；放纵
    If you say that someone does something with abandon, you mean that they behave in a wild, uncontrolled way and do not think or care about how they should behave.

abandon在线翻译

    e.g. He has spent money with gay abandon...
           他肆意挥霍钱财。
    e.g. Their permissiveness toward their children reflects the wild abandon of their own lives.
           他们对孩子的放任折射出他们自身生活的放浪形骸。

6. see also: abandoned

7. （船舶下沉时）弃船
    If people abandon ship, they get off a ship because it is sinking.

    e.g. The officers and crew prepared to abandon ship in an orderly fashion.
           全体船员秩序井然地准备弃船。