Definition of jenny in English:



  • 1A female donkey or ass.

    • ‘The culprit turned out to be a small, aluminum dust cap from a hydraulic jenny.’
    • ‘The ‘boys’ are pastured adjacent to the mares and jennies, and electric fencing keeps everybody back.’
    • ‘Unfortunately we only caught a jenny (which we released, of course!) and nothing else.’
    • ‘New rolling stock such as ore jennies, three bay hoppers, gondolas and billet flat cars began replacing the aging fleet during the 1970s.’
    • ‘Both jennies have foals each year which the couple sell on to fellow donkey lovers.’
    • ‘The jet was given life through a hydraulic jenny to verify the system integrity.’
    • ‘The first solution to this bottleneck appeared around 1765 when James Hargreaves, a carpenter by trade, invented his cotton-spinning jenny.’
  • 2

    short for spinning jenny
    • ‘The jenny had between six and twenty-four spindles mounted on a sliding carriage.’


Early 17th century (used to denote a female mammal or bird): pet form of the given name Janet (compare with jack).