This is the 8233rd most frequent Chinese word.
hat
The Chinese word for "hat" is 帽子 (màozi), meaning a headwear accessory.
Here, '帽子' (hat) is used as a noun to indicate a specific wearable item.
我今天戴了一顶新帽子。
Today I wore a new hat.
In this sentence, '帽子' (hat) is still a noun and is the subject which is being referred to for suitability.
这顶帽子对你真适合。
This hat really suits you.
Here, '帽子' (hat) is used in the imperative sense, advising the listener to wear or bring an appropriate item.