1
: a horizontal piece (such as a timber) that forms the lowest member or one of the lowest members of a framework or supporting structure: such as
a
: the horizontal member at the base of a window
b
: the threshold of a door
2
: a tabular body of igneous rock injected while molten between sedimentary or volcanic beds or along foliation planes of metamorphic rocks
3
: a submerged ridge at relatively shallow depth separating the basins of two bodies of water
Examples of sill in a Sentence
Recent Examples on the Web
Using a broom, sweep away the cobwebs and debris from the windows and sills.
—
Nellah Bailey McGough, Southern Living, 26 Oct. 2025
Removing the roof required a fair amount of engineering to ensure torsional rigidity, including strengthening the door sills, A-pillars, and adding cross-body braces.
—Sean Evans, Robb Report, 21 Oct. 2025
Place them on bookshelves, window sills, mantels, and even in your fireplace to create a unique focal point in a room.
—Claire Hoppe Norgaard, Better Homes & Gardens, 15 Oct. 2025
Use the wand to reach window sills and curtains, and opt for the pet multi-tool to lift pet hair from stairs and upholstered furniture.
—Isabel Garcia, PEOPLE, 8 Oct. 2025
See All Example Sentences for sill
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Nellah Bailey McGough, Southern Living, 26 Oct. 2025
Removing the roof required a fair amount of engineering to ensure torsional rigidity, including strengthening the door sills, A-pillars, and adding cross-body braces.
—Sean Evans, Robb Report, 21 Oct. 2025
Place them on bookshelves, window sills, mantels, and even in your fireplace to create a unique focal point in a room.
—Claire Hoppe Norgaard, Better Homes & Gardens, 15 Oct. 2025
Use the wand to reach window sills and curtains, and opt for the pet multi-tool to lift pet hair from stairs and upholstered furniture.
—Isabel Garcia, PEOPLE, 8 Oct. 2025
See All Example Sentences for sill
Cite this Entry
“Sill.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sill. Accessed 29 Oct. 2025.
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