Any overlap, confluence, or crossover.
The junction of two (or more) paths, streets, highways, or other thoroughfares.
The 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
The pullback of a corner of monics.
The 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).
The set containing all the elements that are common to two or more sets.
A bond or link signifying union.
A ligament that limits the movement of an organ or part.
A horizontal line over the top of some of the terms in an expression, indicating that that part of the calculation is to be done before other parts.
Specifically, the horizontal line between the numerator and denominator in a fraction.