(n): the direction or path along which something moves or along which it lies
(n): a short nail with a sharp point and a large head
(n): a thin pointed piece of metal that is hammered into materials as a fastener
(n): gear for a horse
(n): equipment consisting of miscellaneous articles needed for a particular operation or sport etc.
(n): (nautical) a line (rope or chain) that regulates the angle at which a sail is set in relation to the wind
(n): something (as a cord or rope) that is long and thin and flexible
(n): (nautical) the act of changing tack
(n): a change in the direction that you are moving
(n): sailing a zigzag course
(n): riding in a sailboat
(v): fasten with tacks
(v): cause to be firmly attached
(v): turn into the wind
(v): travel on water propelled by wind
(v): create by putting components or members together
(v): cause to become joined or linked
(v): make or cause to be or to become
(v): sew together loosely, with large stitches
(v): fasten by sewing; do needlework
(v): fix to; attach
(v): cause to be attached
(v): reverse (a direction, attitude, or course of action)
(v): change to the contrary
directly as in tack (down) v. indirectly as tack into the wind.