The grid of such a puzzle
A word puzzle in which interlocking words are entered usually horizontally and vertically into a grid based on clues given for each word.
The set containing all the elements that are common to two or more sets.
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).
Any overlap, confluence, or crossover.