window
6 synonyms and 0 antonyms for window, grouped by meaning and by how common each one is.
Noun — An opening in a wall, usually fitted with glass, that lets in light and air.
Synonyms
Everyday swaps
Common words most readers know — safe in any writing.
Rare, literary or technical
Precise, but they will stand out — check the sense before using one.
How to use window
The word patterns that sound natural to a native speaker.
Etymology
From Old Norse vindauga, literally "wind-eye" — an opening that let wind (and light) into a building, before glass panes were common.
Full origin of window →Frequently asked questions
What does “window” mean?
The word “window” means an opening in a wall, usually fitted with glass, that lets in light and air. In plain terms, a glass opening in a wall, a limited timeframe for doing something, or a screen panel in software.
How do you pronounce “window”?
“Window” is pronounced WIHN-doh (/ˈwɪndoʊ/ in IPA).
How do you use “window” in a sentence?
Here is “window” used in a sentence: “She opened the window to let in some fresh air.”
What is another word for “window”?
Words with a similar meaning to “window” include glass.
What part of speech is “window”?
“Window” is a noun.
Where does the word “window” come from?
The word “window” comes from Old Norse. From Old Norse vindauga, literally "wind-eye" — an opening that let wind (and light) into a building, before glass panes were common.
Is “window” a common word?
“Window” is a very common word in modern English, usually learned at around the A1 level.
How many meanings does “window” have?
“Window” has 3 distinct senses listed in this dictionary. The most common is: an opening in a wall, usually fitted with glass, that lets in light and air.
What are the types of windows?
Common styles include casement windows, hinged at the side; sash windows, which slide up and down; sliding windows, which move sideways; bay and bow windows, which project outward; and fixed or picture windows that do not open. Each balances light, ventilation, and appearance differently to suit the building.
What is the difference between a window and a skylight?
A window is an opening set in a wall, letting in light and air from the side. A skylight is a window fitted into a roof or ceiling, bringing light from above. Both use glass, but their position differs: windows look outward, while skylights look up to the sky.
Why are windows important in a building?
Windows let in natural light and fresh air, reducing the need for artificial lighting and improving ventilation. They offer views, connect indoor spaces to the outside, and affect a building's warmth, energy use, and mood. Well-placed windows can make rooms feel larger, brighter, and more comfortable to occupy.
Does window have other meanings?
Yes. Beyond the opening in a wall, window can mean a period of opportunity, as in a launch window or a window of time; a framed area on a computer screen; or a transparent panel in an envelope. Each borrows the idea of an opening you can see or act through.