The term 'SAILOR's Skill' is a reference to the job of SEAMANSHIP, which is the skill of operating and navigating a ship. SEAMANSHIP involves knowledge of navigation, sailing techniques, and the operation of various shipboard systems. It also requires an understanding of the principles of meteorology, oceanography, and marine engineering. SEAMANSHIP is an essential skill for any SAILOR, as it allows them to safely and efficiently operate a vessel.