Definitions
1.nounThe junction of two (or more) paths, streets, highways, or other thoroughfares.
2.nounAny overlap, confluence, or crossover.
3.nounThe point or set of points common to two geometrical objects (such as the point where two lines meet or the line where two planes intersect).
4.nounThe set containing all the elements that are common to two or more sets.
5.nounThe element where two or more straight lines of synchronized skaters pass through each other.http//www.isu.org/vsite/vcontent/content/transnews/0,10869,4844-128590-19728-18885-295370-3787-4771-layout160-129898-news-item,00.html
6.nounThe pullback of a corner of monics.