Definition of thirteen in US English:


cardinal number

  • 1Equivalent to the sum of six and seven; one more than twelve, or seven less than twenty; 13.

    ‘thirteen miles away’
    ‘a rise of 13 percent’
    ‘thirteen of the bishops voted against the motion’
    • ‘Normally it takes twelve to thirteen months for him to instill a solid reining education on a horse, from start to finish.’
    • ‘I fought in the great battles that swept over our land thirteen years ago, and lived to tell the tale.’
    • ‘Of the thirteen contestants, seven were chosen for a question and answer round.’
    • ‘Chapter thirteen covers the various options available for mounting your photos.’
    • ‘Seven of the thirteen case studies are included in the abridged version.’
    • ‘He had spent the last thirteen years of his life in Ireland, mostly in County Galway, and at least some of the time in Carna.’
    • ‘I walked into the room and was greeted by about twelve or thirteen little sophomores.’
    • ‘Of the authors of the thirteen articles, seven were academics and six non-academics.’
    • ‘Eleven high officials in thirteen universities were ejected from office.’
    • ‘The 1790 census reported about half a million people living west of the original thirteen states.’
    • ‘Previously they have been ranked as the most intense set of examinations in the world, with a maximum of thirteen exams in seven days.’
    • ‘It's something like twelve or thirteen years since I last had a stream of colds like this and I've been relatively free of them since.’
    • ‘Twelve of the thirteen disciplined workers were important union officials or representatives.’
    • ‘For eight months I've been following a sensible diet that's resulted in my losing thirteen pounds.’
    • ‘I kneaded for eight minutes and my wife took over for the last thirteen.’
    • ‘The walk was thirteen miles long and nearly one hundred people participated and completed.’
    • ‘I figure we probably have twelve or thirteen years left to go.’
    • ‘Six more jobs were to come, spread over the next thirteen years, but they were of a different character.’
    • ‘The hills are rolling out in front of her and there are thirteen miles to cover before she will tell her story again.’
    • ‘They shared the joy and burden of editing for the next thirteen years, the longest period of any coeditorship in the journal's existence.’
    1. 1.1 A size of garment or other merchandise denoted by thirteen.
    2. 1.2 Thirteen years old.
      ‘two boys aged eleven and thirteen’
      • ‘In a bid to catch the killer the police interviewed every male between the ages of thirteen and sixty.’
      • ‘Ivan was sixteen, Alexis thirteen, Andrei eleven, I was nine and Natalia was three.’
      • ‘Patrick is believed to have committed suicide at the age of thirteen, though the body was never found.’
      • ‘It is for young people between the ages of thirteen and eighteen.’
      • ‘Forty-one of the children began working between the ages of eight and thirteen, most starting at ages ten or eleven.’
      • ‘His first sermon before a responsive audience was delivered in a Wesleyan schoolroom at the age of thirteen.’
      • ‘He is the father of three US-born daughters aged six to thirteen.’
      • ‘The camp will consist of classes, sport and fun for children between the ages of eight and thirteen.’
      • ‘My most interesting experience from a linguistic point of view was when I moved from Malaysia to Australia at the age of thirteen.’
      • ‘The children were ragged and dirty, and all looked to be between the ages of eleven and thirteen.’
      • ‘Boys at the age of thirteen are cruel and heartless.’
      • ‘At the age of thirteen she was already a household name in Mayo.’
      • ‘The leaving age had been thirteen until 1901 when it was changed to fourteen.’
      • ‘By the age of thirteen she was studying such challenging pieces as the Mendelssohn Violin Concerto.’
      • ‘Growing up hasn't been fun, but I've made it to the age of thirteen.’
      • ‘However, having very little memory before the age of thirteen or so, I still have no recollection of it whatsoever.’
      • ‘This can all be done without any need to notify the parents if the girl is over the age of thirteen.’
      • ‘Around the age of thirteen, Katherine began to hear about Dr. Martin Luther.’
      • ‘Throughout the week, the children aged from six to thirteen were taught skills in both hurling and football.’
      • ‘Between the ages of ten and thirteen I couldn't get enough of them.’


Old English thrēotīene (see three, -teen). The spelling with initial thi- is recorded in late Middle English.