Definition of threefold in US English:

threefold

adjective

  • 1Three times as great or as numerous.

    ‘a threefold increase in the number of stolen cars’
    • ‘This shows an almost threefold increase in a certain childhood leukaemia.’
    • ‘With a massive expansion in Tramore's population and with a threefold increase in water activity in recent years, demands on the rescue service are becoming more frequent.’
    • ‘Emergency surgery is associated with a threefold increase in morbidity and mortality.’
    • ‘Students at the college are furious that they face a threefold increase in their course fee.’
    • ‘There will be a threefold increase in the number of cases booked from now till the year end, if we look at the number of cases booked till now.’
    • ‘It comes rather late in the day, considering the UK's airport capacity has barely expanded since the Second World War, despite a threefold increase in passenger numbers since 1980.’
    • ‘Transgenic animals had more than threefold the activity levels of those observed in wild-type littermates, as in the 7-day exposed newborns.’
    • ‘Given that the rate of multiple births has risen by 1000 in the past decade, with a threefold increase in triplets alone, any woman contemplating pregnancy may appreciate the existence of their national support network.’
    • ‘The years between 1990 and 2000 saw a threefold increase in the number of herders in Mongolia.’
    • ‘Most diabetes suffers are waiting 17 months to see a specialist and there has been a threefold increase in the number of patients referred to Beaumont Hospital, Dublin in the past seven years.’
    • ‘During 2002 there was a threefold increase in the number of airlines whose planes consistently stayed on ‘noise preferred routes’ during take-off.’
    • ‘He pointed out that in the last seven years there has been a threefold increase in the number of people caught for drink driving.’
    • ‘We found that residing in a high-risk neighborhood translated into nearly a threefold increase in the rate of psychological difficulties and over double the incidence of academic or behavioral problems at school.’
    • ‘Lyell's visits to France and Italy led him to propose a threefold stratigraphical division of the Tertiary rocks there on the basis of the proportion of recent to extinct species of mollusc present.’
    • ‘The total costs, including the financial costs, would be 846 million, a threefold increase in current terms on the price published in 1960, or the equivalent of two-thirds of the British motorway programme for 1973.’
    • ‘From an estimated total of 181,000 in 1975, there was a threefold increase within five years according to published figures, to over 600,000 by 1980.’
    • ‘There's been a threefold increase in the number of overseas students since Melbourne University's study of first year students began about 10 years ago.’
    • ‘The sexual selection process, along with the survival benefits of intelligence, has resulted in a threefold increase in human brain volume in just 2.5 million years, say the scientists.’
    • ‘This February the visitor tally is nigh seven thousand, a more than threefold increase of which I'm mighty proud.’
    • ‘If there is a problem, what has driven a threefold increase in costs in just three years?’
    three-way, tripartite
    View synonyms
    1. 1.1 Having three parts or elements.
      ‘the differences are threefold’
      • ‘Firstly, there is a threefold apostolic testimony.’
      • ‘At the beginning of each mission, there's a narrative that outlines the background to the impending scenario, in addition to the objectives that must be resolved, the latter of which may be twofold or threefold in nature.’
      • ‘This is the traditional, threefold mystical way of purgation, illumination and union.’
      • ‘It is in relation to the threefold parental authorities that we can best understand Min's metamorphosis from a child-adult to a confused adolescent and then, unfortunately, to an unthinking adult-child.’

adverb

  • By three times; to three times the number or amount.

    ‘the aftershocks intensify threefold each time’
    • ‘Fatalities from ovarian cancer have increased threefold in the past 40 years.’
    • ‘Attendance numbers at the Portrait Gallery increased threefold during his eight-year tenure, reaching just under 1,500,000 in 2001.’
    • ‘Taxes were low from 1600 to 1630, when the French peasant economy prospered, and then increased threefold in real terms under Richelieu and Mazarin from 1630 to 1660, when northern France was gripped by agrarian crises.’
    • ‘Still, these figures do not include unreported deaths and ‘suicide equivalents’, which could easily increase these statistics threefold.’
    • ‘While I'm on the point, my book consumption has increased threefold.’
    • ‘There are plans to increase investment in green energy threefold.’
    • ‘The value of shares traded between investors, the so-called secondary market, rose threefold last year, to $2.5 billion.’
    • ‘This growth is mirrored in the company's workforce, with staff numbers increasing almost threefold in recent years, from 90 employees in 2003 to over 300 at present.’
    • ‘The number of Caesarean sections has increased threefold in Britain over the last 25 years with one in five babies now born by the method, according to Department of Health figures.’
    • ‘Although saline-filled implants have been the sole choice for women seeking cosmetic augmentation since 1992, the number of implant surgeries has reportedly increased threefold since then.’
    • ‘In some areas of the world, rates of obesity have risen threefold or more since 1980.’
    • ‘In recent years, statistics suggest, hospital discharge rates have increased threefold and mortality has increased nearly 30 per cent.’
    • ‘So even if we do go up threefold this year, we're only talking about 18,000 people.’
    • ‘Their use of visual data surpasses newspapers threefold.’
    • ‘Over the course of the twentieth century human population has increased more than threefold and gross world product perhaps twentyfold.’
    • ‘In 1999 we treated the western end of Fairburn Ings with barley straw and numbers of wildfowl have increased threefold since that time.’
    • ‘The junk email I am getting has increased threefold over the last week or so.’
    • ‘Turnover during the same period rose threefold, from £20.3 million in 1999 to £60.8 million for the nine months to December 2000.’
    • ‘Philip built up the army numbers: in the course of his reign the number of infantry available to him was increased threefold from 10,000 to 30,000, the number of cavalry more than sixfold, from 600 to 4,000.’
    • ‘The nation has reduced alcohol consumption threefold in this century.’

Pronunciation

threefold

/ˈθriˌfoʊld//ˈTHrēˌfōld/