caulk
/kɔk/
verb
- To seal a joint or gap with a waterproof filler or sealant.
- I learned how to caulk the seams in the boat to keep it from taking on water.
- We need to caulk the bathtub to prevent water from leaking through the cracks.
- The contractor will caulk around the window frames before winter arrives.
noun
- A waterproof filler or sealant used to seal joints and gaps.
- The old caulk had cracked and needed to be replaced.
- Make sure you apply the caulk evenly for a smooth finish.
- She bought a tube of silicone caulk to fix the gap around the sink.