window

/ˈwɪndəʊ/ noun [C]

Definition

GLASS › a space in the wall of a building or vehicle that has glass in it, used for letting light and air inside and for looking through: Open the window if you're too hot. I could see the children's faces at the window. a window frame/ledge

COMPUTER › a separate area on a computer screen showing information and which you can move around: to minimize/maximize a window → See also French windows

(Definition of window noun from the Cambridge Learner's Dictionary © Cambridge University Press)