expression

bay window

a window projecting outward from a wall

In Architecture & Design

In more detail

a window or set of windows that sticks out from the wall of a building, forming an alcove inside

Examples

The living room has a bay window that overlooks the garden.

How to use bay window

A bay window is an architectural feature that projects outward from the exterior wall, creating extra interior space. It is commonly used in residential contexts to refer to both Victorian and modern homes. The term is most frequently used in British English, though it appears in American English as well, particularly in real estate and architecture.

Common phrases

bay window seat
bay window overlooking
stone bay window
curved bay window
bay window alcove

Synonyms

projecting window · bow window · oriel window · picture window

A common mistake

Learners sometimes confuse bay windows with bow windows; while similar, a bow window has a smooth, curved projection, whereas a bay window typically has angular sections (usually three).

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