tack

Food, especially coarse or inferior foodstuffs.

A short, light nail with a sharp point and a flat head.

A rope for holding down the weather clew of a course.

A rope for hauling the outer lower corner of a studdingsail to the boom.

The part of a sail, such as the weather clew of a course, to which this rope is fastened.

The lower forward corner of a fore-and-aft sail.

The position of a vessel relative to the trim of its sails.

The act of changing from one position or direction to another.