What does the word jump mean?

Usage examples for jump

  1. Come, jump up; here's the captain. – Steve Young by George Manville Fenn
  2. Indeed, my hail made a good many men jump, to judge by the sounds and the words that came to me from above. – Romance by Joseph Conrad and F.M. Hueffer
  3. Watch out- jump, boys, jump! – The Little Shepherd of Kingdom Come by John Fox
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