The phrase "broad windows" is correct and can be used in written English.
It is often used to describe a type of window that is wider or larger than average. You can use it in a sentence like: "The living room was filled with natural light, thanks to the broad windows that stretched from floor to ceiling."
Broad windows looked out on the parking lot.
High, broad windows at strategic intervals bring in views of the countryside, reinforcing the feeling of old meeting new.
The wind was hurtling off the prairie, rattling the broad windows, while tendrils of snow snaked across the tarmac.
After the performances, while the judges debated and tallied, the singers gathered with their families in an area whose broad windows overlook Lincoln Center's plaza.
It always comes back to her: the fifty-four-year-old, barefoot waif in a T-shirt and loose jeans, eclipsed by the light pouring in from the broad windows.
Even in a weakening economy, there will presumably always be a strong market for newly built apartments with broad windows facing Central Park, in part because so few become available.
Part of the problem is the broad window, anytime from July to December.
A private dining room with seating for 22 overlooks the main floor through a broad window with sliding glass panels.
It is a broad window into stands of cypress, their wide fluted bases attached to their redirections in still, dark water.
Instead of the school's broad window facing Central Park, the Meeting House had wide, limestone expanses, like a mausoleum, and simple, blocky detailing.
Admirers of the Goelet building, which is distinguished by broad window bays intricately framed in white terra cotta, had urged its designation as a landmark.
