verb · to refrain from or avoid certain foods, activities, or behaviors, especially for health or religious reasons

医生嘱咐病人在服药期间禁忌辛辣食物。

noun · a medical condition or factor that serves as a reason to withhold a certain treatment or medication

这种药物对于患有高血压的病人有很多禁忌。

noun · a social, cultural, or religious custom prohibiting or restricting a particular practice, person, or thing

在某些文化中，谈论死亡是一个禁忌。