ellipse

noun1

1. •
   A closed curve, the locus of a point such that the sum of the distances from that point to two other fixed points (called the foci of the ellipse) is constant; equivalently, the conic section that is the intersection of a cone with a plane that does not intersect the base of the cone.

verb1

1. •
   To remove from a phrase a word which is grammatically needed, but which is clearly understood without having to be stated.

   • In B's response to A's question:- (A: Would you like to go out?, B: I'd love to), the words that are ellipsed are go out.

noun2

1. •
   A park in Washington, D.C., United States.
2. •
   Synonym of President's Park South, a 52 acre city park, south of the South Lawn of the White House, between the White House estate and the Washington Monument grounds of the National Mall.