Meriam-Wester online dictionary define PLAGIARISM as
- to steal and pass off (the ideas or words of another) as one's own
- to use another production without crediting the source
- to commit literary theft
- to present as new and original and idea or production derived from existing source
according to PLAGIARISM 101, terms like "copying" and "borrowing" disguise the seriousness of the offense of stealing other people's production.