gulf - definition and synonyms

noun [countable] 

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/ɡʌlf/
singulargulf
pluralgulfs
  1. 1
    a large and important difference between people or groups

    trying to close the widening gulf between the rich and the poor

  2. 2
    a large area of sea that is almost surrounded by land

    the Persian Gulf

    the warm waters of the Gulf of Thailand

  3. 3
    a long thin deep crack or hole in the ground

phrases