Noun
A narrow box filled with earth, placed on a windowsill and used for growing plants.
One of the hollows in the sides of a window frame for the weights which counterbalance a lifting sash.
Source: en.wiktionary.orgFrom that wood pallet, the Deckers put together a 32-inch wide window box, two boards high, with a gap between the boards for drainage. Source: Internet
Just in time for spring, give your mother's windowsill a Spring Clean with a new window box that allows her to grow her own organic chives, oregano, and basil. Source: Internet
This 9-inch scale PVC diorama measures approximately 7 inches tall and comes packaged in a full-color window box. Source: Internet
Comes packaged in a full-color window box." Source: Internet
Unfolding our newspaper with a window box in view makes for a much cheerier Sunday routine. Source: Internet