intersection

(n) a point where lines intersect intersection point, point of intersection,
(n) a junction where one street or road crosses another carrefour, crossroad, crossway, crossing,
(n) a point or set of points common to two or more geometric configurations
(n) 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
Cartesian product, product,
(n) a representation of common ground between theories or phenomena
- there was no overlap between their proposals
overlap, convergence,
(n) the act of intersecting (as joining by causing your path to intersect your target's path)

intersection point point of intersection carrefour crossroad crossway crossing Cartesian product product overlap convergence

intersecting

intersection point