IPA: /ˈræpər/
KK: /ˈræpər/
A covering or material that is used to wrap something, such as a package or a book.
She carefully removed the wrapper from the chocolate bar before eating it.
Wrapper → It is formed from "wrap" (from Old English *wrappian*, meaning to cover or enclose) and "-er" (meaning a person or thing that performs an action). A wrapper is something that covers or encloses another object.
Think of something that 'covers' ('wrap') another object, and the '-er' indicates that it is the thing doing the covering.