skewl
plagiarism=without their permission
By copying someone's work, you devalue it. The point of copyright law is to create value through scarcity.
Say, "please you mean they copying me", or "whatever I got style and I look better anyway", or you could just change and make up your own unique and personal style.
The definition of plagiarism is copying someone else's work and claiming it is your own, yes.
The act of verbatim copying is called plagiarism. It involves directly copying someone else's work without giving proper credit or citation.
Copying CD's without the prior consent of the content owners - is illegal.
Do not let them see your work.
hellio
Generally copying someone else's work to pass off as your own is considered plagiarism. You are correct that it would additionally be infringing.
The way to become a writer is not to base your stories on someone else's work, but to invent your own worlds and people. Copying someone else's story is plagiarism, and it's illegal.
copyright infringement
you tell him or her to stop because you don't feel okay with it.