window

US /ˈwɪndoʊ/

UK /ˈwɪndəʊ/

A1
n. (c./u.)Noun (Countable/Uncountable)Opening in a wall or door to let in light
I will open the window to let in the wind
n. (c./u.)Noun (Countable/Uncountable)Opening in a wall through which people do business
Go to the window and buy yourself a hamburger
n. (c./u.)Noun (Countable/Uncountable)A favorable opportunity; a propitious time.
There's a window of opportunity to invest in this company now.
n. (c./u.)Noun (Countable/Uncountable)A rectangular area on a computer display screen, in which a program or document can be viewed.
I have too many windows open on my computer screen.

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