caulk
verb (used with object)
to fill or close seams or crevices of (a tank, window, etc.) in order to make watertight, airtight, etc.
Used to describe an ongoing action or state that is currently taking place in the immediate present.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Workers are caulking the boat, repairing planks, replacing walkways and structural members, adding drainage points and applying a sheathing that protects against shipworms.
From New York Times ● Aug. 5, 2015