Cardinal directions are the four main points of a compass: north, south, east, and west which are also known by the first letters: N, S, E, and W. These four directions are also known as cardinal points. A cardinal direction can also be referred to by first using the word “due”. For example, the cardinal direction of north can also be referred to as due north. When used in outdoor billboard or out-of-home advertising cardinal direction is the direction the billboard unit faces.
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