| Before you understand what is Transversal, you must know: 
 What are Lines ?
 What are Intersecting Lines ?
 What is Intersection Point ?
 
 Definition:  A line which intersect two or more lines at different points is known as a Transversal
 
 E.g. In the following diagram:
 
 
   
 Lines X and Y are intersected by another Line P at points A and B respectively.
 
 Or we can also say that:
 
 Line P intersects two Lines X and Y at different points i.e. A and B respectively.
 
 Hence, Line P is transversal to Lines X and Y.
 
 Now, in the following diagram:
 
 
   
 You can see that here also, Line P is intersecting Lines X and Y.
 
 So, Can we say here also that Line P is transversal to Lines X and Y ?
 
 No, Line P is not a transversal to Lines X and Y because it does not intersect Lines X and Y at different points.
 
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