a box for growing plants, placed at or in a window.
a hollow space in a window frame for a sash weight.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use window box in a sentence
They’re a favorite of cool-weather gardeners, and you’ll often find them in public parks, window boxes, and decorative planters—although those aren’t the best places to browse for a snack.
Here, two sixtyish men bashing in an ornamental wooden window box, one using a flagpole.Inside the Capitol Riot: What the Parler Videos Reveal | by Alec MacGillis | January 17, 2021 | ProPublica
I invest in the plants that are told me to be best adapted to window-box culture.Amateur Gardencraft | Eben E. Rexford
Patsy stamped slowly up the two flights, and rummaged in a very mussy window-box for a silk waist.Smith College Stories | Josephine Dodge Daskam
Upon finishing the note an impulse to accompany it with a small nosegay culled from my window box came upon me.Fibble, D. D. | Irvin Shrewsbury Cobb
British Dictionary definitions for window box
a long narrow box, placed on or outside a windowsill, in which plants are grown
either of a pair of vertical boxes, attached to the sides of a sash window frame, that enclose a sash cord and counterbalancing weight
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012