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English definition of “wallpaper”

wallpaper

noun [U]     /ˈwɔːlˌpeɪpər/
FINANCE, STOCK MARKET shares and bonds that have no or almost no value: Are these certificates worth anything or are they just wallpaper?
IT an image or pattern that you can save onto the screen of your computer: All these images are free to download as desktop wallpaper.
(Definition of wallpaper noun from the Cambridge Business English Dictionary © Cambridge University Press)
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