Fenestra and Windows

Fenestra noun - A small opening covered with membrane (especially one in the bone between the middle and inner ear).

Windows and fenestra are semantically related In some cases you can replace term "Windows" with "Fenestra", this nouns are similar.

Windows noun - (trademark) an operating system with a graphical user interface.

Fenestra and windows are semantically related in framework with pane topic. You can use "Fenestra" instead a noun "Windows".