bay window

American  

noun

1. an alcove of a room, projecting from an outside wall and having its own windows, especially one having its own foundations.

2. Informal. a large, protruding belly; paunch.

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bay window British  

noun

1. Sometimes shortened to: bay.  a window projecting from the wall of a building and forming an alcove of a room See also bow window oriel window

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Etymology

Origin of bay window

late Middle English word dating back to 1400–50

Example Sentences

Eventually I noticed the beam on the bay window was missing and could see some mild smoke coming out of the back.

From BBC • Jun. 17, 2025

Adding further drama is a giant bay window in the living room that overlooks the backyard.

From Los Angeles Times • Feb. 26, 2024

By March 5, Mr. Rice noticed the bay window in his living room was cracking from the weight of the snow.

From New York Times • Mar. 15, 2023

Then he would retire, and they could live in their snug Oakmont house with the big oak tree out back and the bay window overlooking the lawn.

From Washington Post • Jul. 28, 2022

She lives next door, and she sits in her big bay window all day and most of the night.

From "Things Not Seen" by Andrew Clements