CAULK
- to make the seams of a ship watertight, also CALK [v -ED, -ING, -S]
- to make the seams of a ship watertight [v CAULKED, CAULKING, CAULKS]
- to fill the seams of to keep water or air out
- material used to caulk seams
- to stop up and make tight against leakage (as a boat or its seams, the cracks in a window frame, or the joints of a pipe)