noun (n)

• a point where lines intersect(noun.cognition)

  Synonym:
  intersection point, point of intersection
  

  source: wordnet30
• a junction where one street or road crosses another(noun.artifact)

  Synonym:
  carrefour, crossing, crossroad, crossway
  

  source: wordnet30
• a point or set of points common to two or more geometric configurations(noun.shape)

  source: wordnet30
• the set of elements common to two or more sets(noun.group)

  Example:
  The set of red hats is the intersection of the set of hats and the set of red things.
  

  Synonym:
  cartesian product, product
  

  source: wordnet30
• a representation of common ground between theories or phenomena(noun.cognition)

  Synonym:
  convergence, overlap
  

  source: wordnet30
• the act of intersecting (as joining by causing your path to intersect your target's path)(noun.act)

  source: wordnet30
• The act, state, or place of intersecting.(noun)

  source: webster1913