Common Meanings
1
dòu窦
A hole or cavity; often used in a medical context, referring to a sinus (e.g., nasal sinus).
我的鼻窦有点不舒服。
My nasal sinus feels a bit uncomfortable.
A cavity or sinus, typically referring to an anatomical indentation or hollow space within an organ or tissue, such as a nasal sinus or the sinoatrial node.
我的鼻窦有些发炎，需要去医院检查
My nasal sinuses are somewhat inflamed, so I need to go to the hospital for a check-up.
When pronounced 'dòu', 窦 refers to a small hole, a loophole, or a point of doubt or defect, often seen in compounds like '疑窦' (point of doubt/suspicion) or '弊窦' (malpractice/defect).
这笔交易中存在一些疑窦，必须彻底查清。
There are some suspicious points in this transaction that must be thoroughly investigated.