Seals the seams and gaps in a boat, building, or other structure with waterproof material.
Third-person singular present tense of 'caulk.' The base word comes from Old French 'calfater' via Middle English.
The verb 'caulks' appears frequently in ship maintenance logs because wooden vessels need re-caulking every few years—the ocean is basically trying to pry your boat apart and caulking is your only defense!
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