Glass panes common in
the walls of buildings, especially sky scrapers, allowing people inside to see the outside and to let light in.
Windows have been around for thousands of years, although they were originally just holes in the walls of buildings, without any glass panes.
Windows should not be confused with the remarkably
unstable and virus-susceptible
Windoze.
Yesterday, I was
wondering if it was
raining or not, so I looked outside through the windows and
saw that it was, in fact, raining. Without my windows, I could have gotten wet.