Definitions

1. noun

A soft, moist substance (such as a mixture of water and lime or water and paint) used to fill in gaps or joints and seal them.

“The carpenter applied caulk to the cracks in the ship’s hull.”

2. verb

To fill or seal with caulk.

“The plumber caulked the bathroom sink to prevent leaks.”

3. verb

To fill or close (a gap or opening) by applying caulk.

“She caulked the hole in the wall to prevent water from seeping in.”