Definition of paper:
a material made of cellulose pulp derived mainly from wood or rags or certain grasses
an essay (especially one written as an assignment); "he got an A on his composition"
a daily or weekly publication on folded sheets; contains news and articles and advertisements; "he read his newspaper at breakfast"
a medium for written communication; "the notion of an office running without paper is absurd"
a scholarly article describing the results of observations or stating hypotheses; "he has written many scientific papers"
a business firm that publishes newspapers; "Murdoch owns many newspapers"
the physical object that is the product of a newspaper publisher; "when it began to rain he covered his head with a newspaper"
cover with paper; "paper the box"
cover with wallpaper