Webster's English Dictionary

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intersection

in.ter.sec.tion \.int-*r-'sek-sh*n, esp in sense 2 'int-*r-.\ n 1: the act 
   or process of intersecting  2: a place or area where two or more things 
   intersect  3: the set of elements common to two sets; esp : the set of 
   points  common to two geometric configurations