Definition of twelfth in US English:


ordinal number

  • 1Constituting number twelve in a sequence; 12th.

    ‘the twelfth of November’
    ‘his twelfth birthday’
    ‘the twelfth in a series of essays’
    • ‘The Byzantines experienced some prosperity in the twelfth century, but their political and military power waned.’
    • ‘Arab traders took Islam to the area in about the twelfth century, possibly even earlier.’
    • ‘He traced the origins of the Order in Ireland back to their arrival with their Anglo-Norman overlords and patrons in the twelfth century.’
    • ‘It is also one of the world's best locations for keeping a record of earthquakes: its records go back to the twelfth century.’
    • ‘Uzès is a mass of winding cobbled streets, a beautiful twelfth century (I think) church, and a relaxed mellowness that I loved.’
    • ‘I've just realised, it's my twelfth birthday today.’
    • ‘The worst day of this ordeal was by far the day of my twelfth birthday.’
    • ‘In the twelfth century when Peter of York advanced claims of lordship, St Andrew was made the patron saint of Scotland.’
    • ‘Shii school of Islamic law relying on a series of rational processes dating to at least the twelfth century.’
    • ‘The great twelfth century rabbi Maimonides ranked eight types of giving in order of virtue.’
    • ‘There is general agreement that the most outstanding of all Galician wine is the white Albarino from the Val de Salnes, introduced from the Rhine by Benedictine monks from Cluny during the twelfth century.’
    • ‘A twelfth century date has been suggested for the carving, but it is more likely to date to the fifteenth century.’
    • ‘It is unknown when they were first built but it is generally accepted that they are early Christian and that they were still being constructed up until the twelfth century and possibly later.’
    • ‘All was lost by the end of the twelfth century, but the memory of Western territorial aggression against the Dar al Islam was deeply imprinted.’
    • ‘This was a slow process, and popes continued to appoint bishops to sees like Carthage and Tripoli until the middle of the twelfth century, but traces of organised, indigenous Christian communities become rare after that time.’
    • ‘In the picture at the Civic Museum in Ancona, St Francis in the twelfth century adores the appearance of the Madonna and Child in the clouds above the Doge's palace in Venice, built 300 years later.’
    • ‘How often do we hear these days about the original decision handed down in the twelfth century, that the sovereign of England should rule over the whole of all the British Isles?’
    • ‘In the last decades of the twelfth century, the Societas Mercatorum, the organisation that had overseen the commercial life of Florence for 100 years, began to fracture into separate units.’
    • ‘Peter's Hill and Upper Thames Street were laid out in the twelfth century.’
    • ‘In the twelfth century, the great Kurdish conqueror Saladin built the Citadel, a fortress on a hill above Cairo, using the labor of captured Crusaders.’
    1. 1.1a twelfth/one twelfth Each of twelve equal parts into which something is or may be divided.
      • ‘Each of the sisters had been responsible for bringing in about a twelfth of the horde and knew every one of them by name.’
      • ‘How can you claim he or anyone else is perfect for you based on some irrelevant, stupid thing he has in common with a twelfth of the population - it's so dumb.’
      • ‘If the three are on the ground all at once, that would be three out of 36 players… one twelfth of the players on the ground.’
    2. 1.2US The twelfth grade of a school.
      • ‘By the twelfth grade boys are four times as likely as girls not to do homework.’
      • ‘Choose the science you like the most and do a second year of that in twelfth grade: Advanced Biology, Advanced Chemistry, or Advanced Physics.’
      • ‘This assessment reflects performance of both public and non-public students at the fourth, eighth, and twelfth grade levels.’
      • ‘One sunny morning in twelfth grade I received a revelation.’
      • ‘The museum was also a fully accredited school, where students from kindergarten through twelfth grade could study amid physical reminders of technological progress.’
      • ‘Chloe was her oldest sister, being in twelfth grade.’
      • ‘Our respondents, however, showed the full range of GPAs by twelfth grade.’
      • ‘Begun in 1972 as an outgrowth of the chapel of the same name, the school runs from kindergarten through twelfth grade and enrolls about 100 students.’
      • ‘About fifty million young people attend schools from kindergarten to twelfth grade, 90 percent of them in public institutions.’
      • ‘She had deleted facts, avoided truths, but since the twelfth grade she had never overtly lied to him.’
      • ‘Trusting became a big issue for me, and it continued to the twelfth grade.’
      • ‘Recent results from the MTF also report heroin use doubling for each grade level from eighth through twelfth grades from 1993 to 1997.’
      • ‘Founded in 1845, Packer enrolls more than 900 students from preschool through twelfth grade.’
      • ‘Mrs. Thompson stood in front of the twelfth grade biology class as she tried to explain how meiosis occurred.’
      • ‘First block was twelfth grade literature, which was not my ideal way to start off the day, but it was only for a semester.’
      • ‘We lack the data to answer this question definitively, as there are no data sets and studies that follow cohorts, identified by race, from kindergarten through the twelfth grade.’
      • ‘It is a difference that I identify with very strongly, because I attended an Orthodox Jewish school in New York City from kindergarten through twelfth grade.’
      • ‘I did happen to be the only tenth grader in twelfth grade Honors English, but I didn't like people assuming things about me from comments made by other teachers.’
      • ‘The early October air was unseasonably chilly, but clear and still, what his twelfth grade physics teacher called ideal weather for sound waves.’
      • ‘Part of the problem, as reported by the TEA, is a severe shortage of bilingual and ESL certified teachers, from kindergarten to the twelfth grades.’
    3. 1.3Music An interval or chord spanning an octave and a fifth in the diatonic scale, or a note separated from another by this interval.
      • ‘Note how the soloist is taken to both high and low extremes of its wide range of a twelfth, and how rhythm is used to convey mood, the nearest Tomkins ever came to writing in stile concitato.’
      • ‘I always asked for ‘Up the Lazy River,’ one of many numbers for which she'd worked out a unique walking bass line of chorded twelfths!’
    4. 1.4the Twelfth July 12, celebrated by upholders of Protestant supremacy in Ireland as the anniversary of William III's victory over James II at the Battle of the Boyne.
      • ‘In August 1998, she held a Twelfth of July celebration in Aras an Uachtarain.’