noun
- A short staff or pole at the bow of a ship, used to display a flag or jack.
Usage: nautical; also called a jack pole
Examples
- The naval vessel raised its colors on the jackstaff at dawn.
- The captain ordered the crew to secure the jackstaff before the storm.
- A small flag flew from the jackstaff of the merchant ship.
- The jackstaff is typically positioned at the bow, forward of the main mast.
- During the ceremony, the national ensign was hoisted on the jackstaff.