society > travel > travel by water > directing or managing a ship > use of wind > [noun] > continuous sail on one tack (3)
Extent in time or space. Nautical. A continuous sail on one tack.
Nautical. A course that is approximately at right angles to the wind. Also: a run on one tack.
A distinct stage or stretch of a voyage, journey, course, or (later) race. Nautical. The course and distance sailed on a single tack (tack, n.1 6a).