Clarification on Plagiarism Definition and Examples

I need someone to help me answer some things for this.
https://plagiarism.iu.edu/

I am seeking assistance with understanding some aspects of plagiarism as outlined in the provided link. Specifically, I need help with comprehending the definition of plagiarism and the examples given.

I need:
- A detailed clarification of the definition of plagiarism.
- Help comprehending the examples of direct plagiarism.
- Advice on how to avoid plagiarism.

My ideal freelancer for this project should have:
- A strong understanding of academic integrity and plagiarism.
- Excellent communication skills to explain concepts clearly.
- Experience in academic writing or tutoring would be a plus.