Windowsill

//ˈwɪndoʊˌsɪl// noun

noun ·Rare ·Advanced level

Definitions

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

    "An upscale version of this tried and true method of providing windowsill humidity is the use of plastic 'egg crating' instead of gravel."

  2. 2
    the sill of a window; the horizontal member at the bottom of the window frame wordnet

Example

More examples

"Where are the book and pencil? The book's on the table, and the pencil's on the windowsill."

Etymology

From window + sill.

Related phrases

window frame

More for "windowsill"

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.