a person or company that takes messages, letters, or parcels from one person or place to another

I want to have this package delivered by motorcycle courier. 我想找摩托递送员送这个包裹。

a person who takes care of a group of people on holiday, especially by giving them advice on what to do, what to see, etc.

to send something using a courier

I'll courier the relevant documents to you this afternoon. 我今天下午请递送员把相关文件送给你。