noun A person who moves from place to place or job to job.
noun A type of lightweight sail used in light winds like a spinnaker.
noun A driver who uses driving techniques to modify vehicle traction to cause a vehicle to slide or power slide rather than drive in line with the tires.
noun A parachutist who jumps before the rest of the group to determine wind direction.
noun A person employed in driving in rock other than coal.
noun A tool used in mining and civil engineering to drill into rock.