This is the 1245th most frequent Russian word.
окна
"Окна" in English means "windows."
Windows referred to as physical objects in the house.
Окна в моем доме очень большие.
The windows in my house are very large.
Describes the action involving the windows (cleaning them).
Чистил окна целый день.
I cleaned the windows all day.
Here, 'okna' is used metaphorically to mean 'windows of opportunity.'