Crossword Clue:

Make watertight

AnswerCrossword Clue
CALKMake watertight
SEALUPMake watertight
CAULKMake watertight
CALKMake watertight.
SEALMake watertight
STANCHMake watertight
SEALUPMake watertight, maybe
CALKMake watertight with oakum.
CAULKMake a watertight seal
CALKMake watertight, as a boat.
CAULKMake a window frame watertight
CAULKMake watertight, in a way