"Courier" is the Engpsh word for "快递" in Chinese.
The word "courier" comes from the Latin word "currere" which means "to run."
Examples of courier in Engpsh sentences:
I received the package by courier this morning.
我今天早上通过快递收到了包裹。
Can you please arrange for a courier to depver the documents?
你能安排一个快递员把文件送过来吗？