Definition of eighty in US English:

eighty

cardinal number

  • 1Equivalent to the product of eight and ten; ten less than ninety; 80.

    ‘eighty miles north’
    ‘a buffet for eighty’
    ‘eighty of the nurses fled’
    • ‘Per capita income is estimated to be less than eighty dollars a year.’
    • ‘Travelling at the rate of over eighty miles per hour, all I could hear was thunderous air rushing pass my ears.’
    • ‘Apparently international crude oil prices continue to soar and are expected to hover around the eighty dollars a barrel mark.’
    • ‘They were black-handled scissors, the kind that you bought for eighty dollars and could cut through bricks with.’
    • ‘In the early '80's, the few major studio releases available on videotape usually cost about eighty dollars.’
    • ‘Menard lies only eighty miles north of the New Madrid Fault system that extends southward from Cairo, Illinois.’
    • ‘Had about eighty or ninety people there, ready to laugh.’
    • ‘I paid eighty dollars to go to a concert on my own.’
    • ‘When we left the precinct the detective said they would reimburse us the eighty dollars.’
    • ‘We kept walking, and ended up spending about eighty dollars on school stuff.’
    • ‘There is little interest in classical communitarian living, and most of the eighty to ninety staff members now live off the site in conventional nuclear family units.’
    • ‘The fish had probably taken some eighty or ninety yards of line in its first rush, then kited to my left.’
    • ‘‘I had eighty dollars with me,’ she said practically in tears.’
    • ‘The only reason anyone would work sixty or eighty hours a week would be to pay off a credit card or some similar emergency.’
    • ‘The New Zealand Government has announced a new Arts, Culture And Heritage package worth eighty million dollars.’
    • ‘I read somewhere that a child, whose parents both smoke twenty a day, has inhaled the equivalent of eighty cigarettes worth of passive smoke in one year.’
    • ‘If they come to you and say, ‘we'll give you a million dollars for eighty percent of the company’ - then you don't have a company any more.’
    • ‘Driving at eighty miles per hour wasn't something new for him.’
    • ‘I think it's about eighty or ninety years old at most, but it has an extremely unusual quality.’
    • ‘By the eve of the Revolution, eighty to ninety percent of rural households owned spinning wheels, and almost half owned looms.’
    1. 1.1eighties The numbers from 80 to 89, especially the years of a century or of a person's life.
      ‘his grandmother was in her eighties’
      • ‘The largest number of persons with dementia occurs in people in their early eighties.’
      • ‘It was in the eighties that underworld characters in the movies began to look more realistic.’
      • ‘Carnival was a big thing in the seventies and early eighties - as it is these days, except in a different way.’
      • ‘Right into his eighties he was producing painting after painting, entire series of etchings.’
      • ‘My grandmother is in her eighties, regularly touches up her roots, and still looks very glamorous.’
      • ‘Sadie, who was in her eighties, was a lady with an outgoing and friendly personality.’
      • ‘I am in my early seventies and my husband is in his late eighties.’
      • ‘For someone approaching his eighties he is so full of life - a real inspiration.’
      • ‘During the eighties he found himself seconded to the new ambulance control room, in Preston.’
      • ‘Anyone that remembers the eighties is encouraged to come along and relive the good old times.’
      • ‘He was in his early eighties and spent most of his life abroad, but made regular visits home.’
      • ‘But somehow all their best stuff seems to be from the mid eighties.’
      • ‘A person in their eighties is a thousand times more likely to develop cancer than someone in their thirties.’
      • ‘The reunion has taken place regularly every two years and was initiated in the mid eighties.’
      • ‘Jimmy, who was in his eighties, was a well known and popular character in the area over the years.’
      • ‘There had been a change in the nature of unemployment since the early eighties.’
      • ‘From the early eighties, we started thinking about organizing on a European level.’
      • ‘She is in her early eighties and wheelchair bound.’
      • ‘In the late eighties, he introduced quality control standards to a sceptical industry.’
      • ‘How strange it must have been to live here in the late eighties.’
    2. 1.2 Eighty years old.
      ‘he was over eighty at the time’
      • ‘I found that he had died in 1988 at the age of eighty.’
      • ‘At the age of eighty, she ventured into a new exercise of her faculties by writing a novel.’
      • ‘Bruce says he'll take anyone from the age of eight to eighty if they're keen.’
      • ‘It may be time to require that a future pontiff who reaches the age of eighty be required to resign.’
      • ‘Along the route, I spotted children as young as two on baby-seats on the back of their parents bikes as well as adults up to the age of eighty on their own.’
      • ‘At the ripe old age of eighty Buddha prepared his disciples for his death and quietly died at night.’
      • ‘He passed away in 1996, near the age of eighty, but was a strong, feisty man.’
      • ‘A man of a guessable age of eighty sat at a desk stacked high with papers.’
      • ‘Cartoon Art Classes take place every Saturday from 10 to 11.30 a.m. for ages eight to eighty.’
      • ‘Should I so decide to challenge my brain, The College caters for students; ages from twelve to eighty, so I would fit in there somewhere.’
      • ‘At age eighty, he began to focus on a new challenge.’
      • ‘Life would be infinitely happier if we could only be born at the age of eighty and gradually approach eighteen’
      • ‘He was a cross-country skier until the age of eighty.’
    3. 1.3 Eighty miles an hour.
      ‘roaring down the highway doing eighty’
      • ‘When we got in the jeep he sped about eighty down the highway.’
      • ‘She was going eighty, ninety; the adrenaline quickly taking over.’
      • ‘She sped up, hitting eighty, then ninety, gaining distance the entire time.’
      • ‘You should've seen her last night, driving at seventy miles per hour going on eighty, blasting rock music.’
      • ‘Eric's gut was burning as he scanned the ticket, registering the two hundred dollar fine for going eighty.’
      • ‘He pushed the speed up to eighty on a forty mile road.’

Origin

Old English hunde(a)htatig, from hund (of uncertain origin) + e(a)hta ‘eight’ + -tig (see -ty); the first element was lost early in the Middle English period.

Pronunciation

eighty

/ˈādē//ˈeɪdi/