<s>Human: 给定一个英文单词，给出它的定义和例句。
"abandon"
</s><s>Assistant: Definition: to leave or give up completely, usually without any intention of returning or resuming.

Example sentence: The villagers had to abandon their homes and flee the area when the volcano erupted.

Note: "Abandon" can also mean to give up on a particular course of action or plan, or to stop supporting or backing a person or cause. For example:
- She abandoned her dream of becoming a pianist and pursued a career in finance instead.
- The company abandoned its plan to expand into the Asian market due to regulatory obstacles.
- He felt abandoned by his friends when they didn't show up to support him at his performance.
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