sill
/sɪl/ noun C1- A breast wall; window breast; horizontal brink which forms the base of a window. · She looked out the window resting her elbows on the window sill.
- A threshold; horizontal structural member of a building near ground level on a foundation or pilings, or lying on the ground, and bearing the upright portion of a frame; a sill plate.
- A stratum of rock, especially an intrusive layer of igneous rock lying parallel to surrounding strata.
- A threshold or brink across the bottom of a canal lock for the gates to shut against.
- A raised area at the base of the nasal aperture in the skull. · the nasal sill
- The inner edge of the bottom of an embrasure.
Plural sills
From the library
Hopped upon the window sill,
What is the name of that geranium on the window-sill, please?”
We set the candle on the window sill and make flashes by passing the cardboard back and forth.
But Anne, with her elbows on the window sill, her soft cheek laid against her clasped hands, and her eyes filled with visions, looked out unheedingly across city roof and spire to that glorious dome of sunset sky and wove her dreams of a possible future from the golden tissue of youth’s own optimism.
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