A window on a car, airplane, or ship lets people see outside safely. They are made of glass or clear plastic.
She looked out the window of the plane.
He opened the car window to speak.
On a computer, a window is a part of the screen that shows a program or some information. You can open or close these windows.
Open a new window to see the file.
The window shows your messages now.
A window can mean a small time frame that lets you do something. You must act during this time.
There is a window to apply for the job.
The window for voting closes soon.
In science and math, a window is a special rule or function. It chooses part of data or signals for study or processing.
Apply the window to improve the signal data.
The window reduces noise in this measurement.
Some clothes or armor have windows—small openings made so the wearer can see or get air.
The helmet had a small window to see.
She looked through the window in her mask.
Sometimes, 'window' means a short chance or moment when you can do something, often quickly or quietly.
I had a window to talk when no one listened.
She found a window to ask a question quickly.
