Marine Engineering

noun a waterproof filler and sealant, used in building work and repairs

verb to fill or seal with caulk

• The contractor used caulk to seal the gaps in the window frames.
• I need to pick up some caulk from the hardware store for the bathroom renovation.
• I'll just slap some caulk on there and call it a day.
• She tried to caulk the emotional wounds with distractions, but they kept resurfacing.

noun a protective covering or case

verb to cover or encase with a protective covering

• The sheathing on the electrical wires provides insulation and protection.
• Sheathing is like a protective cover for the wires.
• Make sure the sheathing on those cables is intact.
• Her calm demeanor was like a sheathing, hiding the turmoil within.