1. plural of window; openings in walls or roofs fitted with glass to admit light and air
2. computer interface elements that display information or applications on a screen
Usage: computing
3. opportunities or periods of time available for something
Usage: figurative

Examples

• The old house had beautiful stained glass windows.
• She opened all the windows to let in fresh air.
• I have too many windows open on my computer screen.
• Close the browser windows when you’re finished.
• There are small windows of opportunity to apply for the scholarship.
• The launch window for the spacecraft is only three days.
• Rain was streaming down the windows during the storm.