51�Թ�

a short, sharp-pointed nail, usually with a flat, broad head.

Nautical.��

1. a rope for extending the lower forward corner of a course.

2. the lower forward corner of a course or fore-and-aft sail.

3. the heading of a sailing vessel, when sailing close-hauled, with reference to the wind direction.

4. a course run obliquely against the wind.

5. one of the series of straight runs that make up the zigzag course of a ship proceeding to windward.

a course of action or conduct, especially one differing from some preceding or other course.

one of the movements of a zigzag course on land.

a stitch, especially a long stitch used in fastening seams, preparatory to a more thorough sewing.

a fastening, especially of a temporary kind.

stickiness, as of nearly dry paint or glue or of a printing ink or gummed tape; adhesiveness.

the gear used in equipping a horse, including saddle, bridle, martingale, etc.

to fasten by a tack or tacks.

to secure by some slight or temporary fastening.

to join together; unite; combine.

to attach as something supplementary; append; annex (often followed by on oronto ).

Nautical.��

1. to change the course of (a sailing vessel) to the opposite tack.

2. to navigate (a sailing vessel) by a series of tacks.

to equip (a horse) with tack.

Nautical.��

1. to change the course of a sailing vessel by bringing the head into the wind and then causing it to fall off on the other side.

   He ordered us to tack at once.

2. (of a sailing vessel) to change course in this way.

3. to proceed to windward by a series of courses as close to the wind as the vessel will sail.

to take or follow a zigzag course or route.

to change one's course of action, conduct, ideas, etc.

to equip a horse with tack (usually followed byup ).

a lease, especially on farmland.

a rented pasture.

a catch, haul, or take of fish.