bay window
US /ˈbeɪ wɪn.doʊ/
UK /ˈbeɪ wɪn.doʊ/

1.
ventanal, mirador
a window built out from the main wall of a building and forming a bay in a room
:
•
The living room had a beautiful bay window overlooking the garden.
La sala de estar tenía un hermoso ventanal con vistas al jardín.
•
She placed a cozy reading nook in the bay window.
Ella colocó un acogedor rincón de lectura en el ventanal.