windowsill

noun

win·​dow·​sill ˈwin-dō-ˌsil 

-də-

: the horizontal member at the bottom of a window opening

Examples of windowsill in a Sentence

Recent Examples on the Web

Use the candles as a centerpiece for your dining table or line a windowsill for a more whimsical look. — Claire Hoppe Norgaard, Better Homes & Gardens, 4 Aug. 2026

Underripe fruit should be stored at room temperature, either on the windowsill (direct sunlight will aid in ripening) or in a closed paper bag. — Martha Stewart, 3 Aug. 2026

Midwives delivered the baby using two mobile phone torches balanced on windowsills. — Christopher McFadden, Interesting Engineering, 25 July 2026

At one point, Sartre left his voluminous manuscript— hundreds of handwritten pages—on a windowsill, where it was caught by the wind and scattered about the room. — Literary Hub, 21 July 2026

Word History

First Known Use

1703, in the meaning defined above

Kids Definition

windowsill

noun

win·​dow·​sill -ˌsil 

: the horizontal piece at the bottom of a window