# windowsill

> English word · Noun · IPA /ˈwɪndəʊˌsɪl/ · frequency rank #52,722

## Definitions
1. The horizontal member protruding from the base of a window frame.

## Etymology
From window + sill.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/windowsill