The word pen different meaning but spell de same way?

You're asking about homographs, words that are spelled the same but have different meanings.

Here are some examples of homographs for "pen":

* Pen (noun): A writing implement.

* Pen (noun): A small, enclosed space, like a "chicken pen."

* Pen (verb): To write with a pen.

* Pen (verb): To enclose in a pen.

Let me know if you'd like more examples of homographs!