variant spelling of caulk
: to stop up and make tight against leakage (something, such as a boat or its seams, the cracks in a window frame, or the joints of a pipe)
variants
or caulk
: a cleat on the shoe of a horse to prevent slipping
also
: a similar device worn on the sole of a shoe
variants
or calk
caulked or calked; caulking or calking; caulks or calks
: to stop up and make tight against leakage (something, such as a boat or its seams, the cracks in a window frame, or the joints of a pipe)
caulker
noun
: material used to caulk
variant spelling of calk entry 2, calk entry 3
: a cleat on the shoe of a horse to prevent slipping
also
: a similar device worn on the sole of a shoe
Examples of calk in a Sentence
Verb (3)
He carefully caulked the area around the windows.
Recent Examples on the Web
Bestreviews, Mercury News, 28 July 2025
These holes are filled with square pegs of white pine and new calks driven into the wood.
—Popular Mechanics Editors, Popular Mechanics, 16 Feb. 2019
Michelle Del Rey, USA Today, 17 June 2026
For weekly maintenance, Stein recommends spraying and wiping down the tiles, scrubbing grout lightly, checking corners and caulking for mildew starting to form, and drying the shower after cleaning to prevent buildup and mold.
—Daley Quinn, Southern Living, 30 May 2026
Timothy Dale, The Spruce, 10 June 2026
Regular cleaning should include wiping down caulk with a disinfectant to keep mold from growing.
—Karen Brewer Grossman, Southern Living, 3 June 2026
See All Example Sentences for calk
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Noun
Hooks: The heel calk’s inside edge is known as the hook due to its sometimes shallow and sometimes very steep inward hook.
—Bestreviews, Mercury News, 28 July 2025
These holes are filled with square pegs of white pine and new calks driven into the wood.
—Popular Mechanics Editors, Popular Mechanics, 16 Feb. 2019
Verb
Contractors would be responsible for sandblasting, caulking and resurfacing the pool basin, the president told reporters on May 7, as part of an initiative to beautify Washington before the country's 250th birthday.
—Michelle Del Rey, USA Today, 17 June 2026
For weekly maintenance, Stein recommends spraying and wiping down the tiles, scrubbing grout lightly, checking corners and caulking for mildew starting to form, and drying the shower after cleaning to prevent buildup and mold.
—Daley Quinn, Southern Living, 30 May 2026
Noun
This 10-in-1 multi-tool will quickly become a go-to option for any number of jobs around the house, making use of the nail setter to hang pictures, the flathead screwdriver to drive or remove screws, and the caulk cleaner to tidy up caulk lines.
—Timothy Dale, The Spruce, 10 June 2026
Regular cleaning should include wiping down caulk with a disinfectant to keep mold from growing.
—Karen Brewer Grossman, Southern Living, 3 June 2026
See All Example Sentences for calk
Cite this Entry
“Calk.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/calk. Accessed 17 Jun. 2026.
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