Tack [tak]
1. (Nautical)
a. The heading of a sailing vessel, when sailing close-hauled with reference to the wind direction.
b. A course run obliquely against the wind.
c. One of the series of straight runs that make up the zigzag course of a ship proceeding to windward.
2.
A course of action or conduct, especially one differing from some preceding or other course.
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