Definition of jack-up in English:



  • 1An offshore drilling rig the legs of which are lowered to the seabed from the operating platform.

    • ‘During the repair work a jack-up barge collapsed due to unforeseeable sea-bed conditions.’
    • ‘One option would be for exploration companies to club together to send a semi-submersible or jack-up rig to the East Coast, drilling a well in each of the four areas over the next four years at cost of $25 million each.’
    • ‘Aminex chief executive Brian Hall said: ‘We have carefully reviewed all the drilling options for Nyuni and conclude that a jack-up rig is the most effective and appropriate option for drilling in this area.’’
    • ‘The jack-up rig with its attendant work boat has been busy drilling and sampling the rock bottom of the harbour and bay while ashore a mobile drilling rig has been sampling along the breakwater.’
    • ‘The tribute came after the Court of Appeal ruled that men on jack-up oil rigs could enjoy the same tax benefits as seafarers.’
  • 2NZ informal A dishonest or underhand way of achieving something.

    • ‘The editor of the Sunday Star-Times has embarked on one of the most transparently unprofessional jack-ups in New Zealand's journalistic history.’
    • ‘That was a politically motivated jack-up a couple of weeks before an election.’
    • ‘But it is important for the record to be put straight, and for the people of west Auckland and of New Zealand to know that Mr Tamihere has been the subject of a well-planned and well-orchestrated witch-hunt and jack-up.’
    • ‘The biggest bill of the year is set to be passed under urgency this week after a jack-up between Labour and NZ First.’
    • ‘The process by which Mr Derek Fox got himself to be appointed as the chief executive officer of the Maori Television Service was nothing less than a monumental jack-up - and that Minister knows it.’