1. A period in time lasting 86 years.
2. The time period lasting from 1918 to 2004 in which the Boston Red Sox of the American League did not win a World Series Championship in Major League Baseball. The Red Sox finally broke the curse by winning the World Series in October of 2004, defeating the St. Louis Cardinals in a 4 game sweep.
"During the duration of the curse, the loyal Red Sox fans were subjected to excruciating agony."