(nautical) A coming up into the wind and filling away again on the same tack.

Alternative form of hardtack

plural of change of tack

plural of tack claw

Alternative form of tick tack, the sound of tapping; a device to tap on a window / Alternative form of tic-tac, a sign language used by bookmakers

(nautical) To change course or heading. / (figuratively, by extension) To take a different approach.

To fix to the ground.

plural of tack-up

A poster.

Synonym of change tack.