Sailor (noun)

1. A person who works on a boat or ship.
2. A person who sails as a sport or hobby.

Origin:

Middle english (denoting a person in charge of a ship): from old french saillour, from saille "ship", from latin navigium.

Examples:

1. The sailor climbed up the mast to fix the sail.
2. The old sailor had sailed the seven seas.
3. The sailor was a skilled navigator.
4. The sailor was an experienced hand on deck.
5. The young sailor was eager to learn from the veteran.