intersection

noun

1. 1

   the act of intersecting (as joining by causing your path to intersect your target's path)

2. 2

   a junction where one street or road crosses another

3. 3

   a representation of common ground between theories or phenomena

   there was no overlap between their proposals

4. 4

   a point where lines intersect

5. 5

   the set of elements common to two or more sets

   the set of red hats is the intersection of the set of hats and the set of red things

6. 6

   a point or set of points common to two or more geometric configurations