intersection -- (a point or set of points common to two or more geometric configurations)
intersection, product, Cartesian product -- (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")
overlap, convergence, intersection -- (a representation of common ground between theories or phenomena; "there was no overlap between their proposals")
intersection -- (the act of intersecting (as joining by causing your path to intersect your target's path))