What is the meaning of the word "stampede"?

Definitions:

  1. a headlong rush of people on a common impulse copy to clipboard noun
    • When we shouted 'fire' there was a stampede to the exits. copy to clipboard
  2. act, usually en masse, hurriedly or on an impulse copy to clipboard verb
    • Companies will now stampede to release their latest software copy to clipboard
  3. cause a group or mass of people to act on an impulse or hurriedly and impulsively copy to clipboard verb
    • The tavern owners stampeded us into overeating copy to clipboard
  4. cause to run in panic copy to clipboard verb
    • Thunderbolts can stampede animals copy to clipboard