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Definition of caulking

caulking

/ˈkɔːkɪŋ/
caulk · ing
Plural:caulkings
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caulking Lexical Profile

caulking Game Scores & Validity

• noun

1

A waterproof filler and sealant used in building work and repairs to seal joints, seams, or gaps against water or air leakage.

Example

"We applied fresh silicone caulking around the bathtub to prevent water from seeping into the wall."

2

The act or process of sealing joints, seams, or crevices with a waterproof filler to make a structure or vessel watertight or airtight.

Example

"Proper caulking of the window frames before winter can significantly reduce household heating costs."

Synonyms
View all synonyms for caulking

• Rhymes for caulking

• Nearby Words

cauldron
cauliflower
caulk
caulking
caura
causal
causality

Word Origin & Etymology

Derived from the verb 'caulk' (Middle English 'calken'), which comes from Old Northern French 'caukier' (to tread or press in) and ultimately from Latin 'calcare' (to tread or stuff), from 'calx' meaning 'heel'.

Cite this Entry

Wordmom. (2026). Definition of Caulking. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/caulking
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