verb · to avert, escape, or prevent something undesirable from happening

为了免出差错，他把整份报告又检查了一遍。

verb · to be forbidden or disallowed, commonly used in public notices

闲人免进。

verb · to remove or discharge from a position or office

他被免去了部长的职务。

verb · to excuse someone from a duty, fee, or obligation

持有学生证的游客购买门票时可以免票。