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No, there is only 1 set of parallel lines in the letter M.
Parallel lines run in the same direction. If they are intersected by one line and that line is perpendicular to both, then it proves that the lines run parallel to each other.
Parallel lines.
In the context of Euclidean straight lines it would mean parallel lines. In the context of a curve and a line (or another curve) it would mean the line and the curve do not meet at any point, but not a lot more can be deduced about them.