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caulking Synonyms

Another word for caulking

Choosing another word for caulking depends on context, so the synonyms and similar words below are separated across 2 exact definitions and ranked by match strength.
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• noun (Context 1)

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

Usage Example

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

Strongest
caulk
sealant
Strong
filler
putty
mastic

• noun (Context 2)

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

Usage Example

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

Strong
sealing
waterproofing
weatherproofing

• Nearby Words

caudex
cauldron
caulk
caulking
causal
causality
causally

Cite this Entry

Wordmom. (2026). Synonyms for Caulking. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/synonyms/caulking
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