This is the 2133rd most frequent Portuguese word.
janela
Window.
The word 'janela' refers to the physical opening in the wall of a building.
Eu abri a janela para deixar a brisa entrar.
I opened the window to let the breeze in.
Here, 'janela' describes a virtual interface in the context of software or computers.
A janela do navegador está cheia de abas abertas.
The browser window is full of open tabs.
In this context, 'janela' metaphorically refers to a specific time period or opportunity for an action.