To drive tarred oakum into the seams between the planks of (a ship, boat, etc.), to prevent leaking. The calking is completed by smearing the seams with melted pitch.
- A pointed extension on the toe or heels of a horseshoe, designed to prevent slipping.
- A spiked plate fixed on the bottom of a shoe to prevent slipping and preserve the sole.
- Variant of caulk.