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

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

Smoke and soot sediment were ubiquitous, with soot often piling up on cars and windowsills. — Rebecca Florsheim, STAT, 17 July 2026

Having herbs readily available in your garden or on your windowsill eliminates the need to visit the store for fresh herbs. — Erica Browne Grivas, Better Homes & Gardens, 16 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