Definition of once in English:



  • 1On one occasion or for one time only.

    ‘they deliver once a week’
    informal ‘he'd only met her the once’
    • ‘I was sure I'd done this once, and it appears to have not worked, so I've done it again.’
    • ‘We must all have wardrobes wherein hang dresses three sizes too small and jackets worn once in the past decade.’
    • ‘But after hearing that he had breached the conditions once in the past the judge decided not to alter where he is to live.’
    • ‘I had done this once before and managed it OK, but today I got tired about two thirds of the way round and had to walk.’
    • ‘I'm only going to say this once: there are obviously more stirring things to read in the weeklies.’
    • ‘I've only seen it once in the past year at 2 in the morning and I remember watching it as a child.’
    • ‘Lord Lansdowne said the estate has only covered its losses once in the past 13 years.’
    • ‘Her daughter has only been to school only once in the past two weeks.’
    • ‘Only once in the past 11 seasons have Everton finished in the top half of the upper echelons of the English game.’
    • ‘And really, I only have to do this once a year, so I am only losing one Sunday out of a possible 52.’
    • ‘They have done this once - who can say that they will not try again?’
    • ‘The study found the majority of consumers have bought products at least once in the past year because they were on promotion.’
    • ‘Instead of delivering twice a day, including in the morning, it now delivers once, at lunchtime.’
    • ‘Only once in the past seven years have the club ended a top-flight campaign among the first five.’
    • ‘I have already written about this once on my website and I can assure you I will be doing so again tomorrow.’
    • ‘The defeat means Sweden have still only once been past the second round stage since 1974.’
    • ‘Limited tickets are still available for this once in a lifetime opportunity.’
    • ‘Anyone who'd seen the news even once in the past few years knew war would happen soon.’
    • ‘More than once Walt has caught her talking to herself when in fact she was speaking to Fred.’
    • ‘I've seen something like this once before but it's certainly not something you come across everyday.’
    on one occasion, one time, one single time
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    1. 1.1usually with negative or "if" On even one occasion; at all (used for emphasis)
      ‘he never once complained’
      ‘if she once got an idea in her head you'd never move it’
      • ‘He never once complained and was a favourite with every single member of the staff.’
      • ‘She knew how tired he must be after all that he'd endured, but he had not complained once.’
      • ‘By midday, Ashley was tired, hungry and her back was throbbing, but she never once complained.’
      • ‘Not once did he complain about me blocking his view even though I kept moving to look up.’
      • ‘Nona's response was to convince herself that Faith had never existed and did not once visit her in the asylum.’
      • ‘We were putting in a twelve hour day for absolutely zero pay, and we never once complained.’
      • ‘Not once has my doctor ever bothered to ask me about what I eat or if I exercise.’
      • ‘They recognized that if they once conceded the moral principle, even in extreme cases, their legal position would become untenable.’
      • ‘His attention to detail was second to none and not once did anyone complain about his ability to tell it as it was.’
      • ‘Not once did he say anything about the things I was interested in.’
      • ‘Otherwise, the game is remarkably stable - didn't crash once on my machine.’
      ever, at any time, on any occasion, at all, under any circumstances, on any account, in a million years
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  • 2At some time in the past; formerly.

    ‘Gran had once been a famous singer’
    • ‘For this once booming town in the former Democratic Republic of Germany now has a more dubious claim to fame.’
    • ‘Now 70, he is an inveterate inventor, the kind that Britain was once famous for.’
    • ‘It was a strange and eerie feeling riding through the near deserted streets of this once great city that I had read and seen so many films about.’
    • ‘Last week, however, this once great company declared itself insolvent.’
    • ‘Nowadays, this once controversial play is on the Irish school curriculum.’
    • ‘I visited the once famous Micklegate run last Friday night and had a pint in the Firkin public house.’
    • ‘Violent death and loss have taken the life of this once powerful businessman - twisted it, broken it and turned it inside out.’
    • ‘City life has changed the face of this once quiet and residential area.’
    • ‘Labels tell the public how to cook the food - this was once part of the of the family butcher's role.’
    • ‘The field was once part of a terrace of the Whitton Dene manor house and it seems that the trouble began when it was filled in with material to even it out.’
    • ‘Post that was once delivered in just a day within the city now takes four to five days, old-timers note.’
    • ‘They were once citizens of the same country as Russians, and they share the same past and historical fate.’
    • ‘No longer can they exert the authority on major occasions that was once their hallmark.’
    • ‘What were once artists' homes now contain offices, flats and the headquarters of the German Arts Council.’
    • ‘We strolled through a stone gateway, past high walls which once fully enclosed the complex.’
    • ‘The famous estate was once owned by the Viner family who sold it in 1966.’
    • ‘Think of someone who was once young and vital, now old, battered, semi-literate and living off the social.’
    • ‘Montreal once had a famous family of peregrines living on the Sun Life building.’
    • ‘Let us know some of the songs, clothes and memories from your past which you once cherished.’
    • ‘I walked past the once crowded video rack which now contained only two items.’
    formerly, previously, in the past, at one time, at one point, once upon a time, on a former occasion, on one occasion, one time, in one case, time was when, in days gone by, in times gone by, back in the day, in times past, in the old days, in the good old days, long ago
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  • 3Multiplied by one.

    ‘once two is two’


  • As soon as; when.

    ‘once the grapes were pressed, the juice was put into barrels’
    • ‘Most of the projects proved that once students put on their thinking caps, nothing could stop them!’
    • ‘He says once people see better services start rolling out next year, they'll think the sale is a good thing.’
    • ‘Most went to the beach this afternoon once Joe had finished school.’
    • ‘And who is there to offer support for the homeless once Christmas is over?’
    • ‘The Echo will publish information on the community petition once details are finalised.’
    • ‘It's nice looking, well made furniture and will look fantastic once it's been delivered in a few weeks.’
    • ‘But such a collection of dictators could become a tourist attraction once freedom comes to the country.’
    • ‘But once drivers had cleared the roundabouts, they were able to make progress towards the coast.’
    • ‘In his experience employers in the Dublin area have had no problem with this once it was pointed out to them.’
    • ‘Thinner roots are planted horizontally in trays of compost and potted up individually once shoots have developed.’
    • ‘Adriano soon wasted a chance but once Ghana overcame early stage fright they began to dominate.’
    • ‘But once people have children, few can ever be truly emotionally free again.’
    • ‘I challenge anyone to dispute this once they have accurate knowledge and some experience of what most councillors do.’
    • ‘The day started at a quarter past six and once the cows were milked, the milk would go to the dairy.’
    • ‘Make no mistake, there are many who would love to see O'Leary fail and are waiting in the wings to pounce once things start to go wrong.’
    • ‘I'll comment on this once I've had a chance to print it out on Monday.’
    • ‘I will comment further on this once I have had a chance to fully digest it myself.’
    • ‘But Eugenie says that once men have the know-how, they look wonderful dancing salsa.’
    • ‘Sevenoaks Motor Club understood that once improvements had been finished it could resume racing in the park.’
    • ‘The date of commencement will be confirmed once people have indicated an interest in taking part.’
    as soon as, when, after, immediately after, the instant, the minute, the moment, the second
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  • all at once

    • 1Suddenly.

      ‘all at once the noise stopped’
      • ‘The problem with most smokers is that they try giving up all at once.’
      • ‘We were in the process of writing a new song and I knew all at once that these words would fit it perfectly.’
      • ‘The sounds struck her all at once, as if the volume on her ears had suddenly been turned up.’
      • ‘But all at once, in the midst of his gay careless life came his tragedy; he fell in love with a hatter's wife.’
      • ‘When he finally did put her words together, it hit him all at once like a ton of bricks.’
      • ‘The experienced safari guides seem to have an innate empathy with the nature all around, and all at once you feel at ease.’
      • ‘Engineers preparing to replace the cables and computers discovered that the cables had degraded so much over the past 50 years that the work needed to be done all at once.’
      • ‘Through it all, he is optimistic that he can succeed, not all at once, but over time.’
      suddenly, abruptly, immediately, instantaneously, instantly, in an instant, straight away, all of a sudden, at once, all at once, promptly, in a trice, swiftly
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    • 2All at the same time.

      ‘a lot of beans are ready all at once’
      • ‘Add the bean sprouts all at once and leave for 20 seconds, then add the spring onions, stir well, and drain.’
      • ‘Daycare's about keeping everyone happy and busy and distracted all at once.’
      • ‘I pointed to them and as she reached out to hand me a few, the picture of us suddenly made me want to laugh and cry all at once.’
      • ‘She was nervous and excited and anxious and hundreds of other things all at once.’
      • ‘Twenty-two years of diving and never a sniff of one of the leviathans of the sea, then suddenly dozens of whale sharks turn up all at once.’
      • ‘Now it doesn't take much arithmetic to work out that you can't give a hot meal to 17 people all at once.’
      • ‘The dancers mix it up quite a bit, performing together all at once, as well as in trios, duos and solo pieces.’
      • ‘Everything was suddenly catching up with me all at once, and I could barely separate one realisation from the other.’
      • ‘Set up a group list with all your buds' e-mail addresses, and write to them all at once.’
      • ‘Cost-wise, it makes sense to collect several updates together and release them all at once.’
      together, all together, as a group, in a body, as one, as a whole, in a mass, wholesale
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  • at once

    • 1Immediately.

      ‘I fell asleep at once’
      • ‘Mr Lane urged any parents who have concerns about the disease to seek medical help at once.’
      • ‘Campaigners fighting to keep homes for the elderly open urged the Council to spend the pot of cash at once.’
      • ‘He had seen his future wife Nancy when she was only 13 and decided at once that she was the only girl for him.’
      • ‘When using oil, the mixture should be combined as quickly as possible, then baked at once.’
      • ‘In most companies, employees have got used to going back to work at once after lunch.’
      • ‘The call goes to Birkenshaw who have files on all the area and can direct a fire crew to me at once.’
      • ‘Dust the soufflés with icing sugar and serve at once with the chocolate sauce and fresh berries.’
      • ‘There would have been every reason for them to have made such facts public at once.’
      • ‘Anyone with concerns is asked to contact their nearest health centre at once.’
      • ‘If it is broken it must be used at once, for it discolours and spoils quickly.’
      immediately, right away, right now, this instant, this minute, this moment, this second, now, straight away, instantly, instantaneously, directly, suddenly, abruptly, summarily, forthwith, promptly, without delay, without hesitation, without further ado
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    • 2At the same time; simultaneously.

      ‘computers that can do many things at once’
      • ‘A mean, penetrating rain, the type that comes at you from all directions at once.’
      • ‘A few trains arrived at once and all of a sudden thousands swarmed the exit all pushing and miserable.’
      • ‘The months seem to be slipping by very quickly now, and I'm working on two issues at once at the moment.’
      • ‘He's trying to do his job but he can't be everywhere and see everything at once.’
      • ‘Most games that try to do a lot of things at once fall apart at the seams, so both of these are something special.’
      • ‘Blogger has suddenly started emailing me comments again so they all arrived at once.’
      • ‘Everything is happening at once at the moment, in a manner that is proving really rather hard to deal with.’
      • ‘Fast bowlers are a bit like buses, none for ages and then two come along at once.’
      • ‘There was a slow churning of his thought processes as two ideas came together at once.’
      • ‘In the low light of the gallery the effect is at once beautiful and rather ominous.’
      at the same time, at one and the same time, at the same instant, at the same moment, together, all together, simultaneously
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  • for once (or this once)

    • On this occasion only, as an exception.

      ‘I hope you'll forgive me this once’
      • ‘In the circumstances I am prepared to overlook the swearing - just this once.’
      • ‘They're calling it the deal of all deals, and for once you can forgive the hyperbole.’
      • ‘She was going to overcome her shy nature this once just for him, because he was worth it.’
      • ‘The painter did not think it would be fun, just this once, to install a window.’
      • ‘It should not form a precedent, but rather should be done as an emergency measure just this once.’
      • ‘Just this once, ‘fun for all the family’ need not fill an adult audience with dread.’
      • ‘Well, all right, write about it this once and I won't kick up the fuss.’
      • ‘Not being a fan of fancy dress, I decided to let myself go just this once to fully appreciate the Rocky Horror experience.’
      • ‘The day stayed dry and the sun shone occasionally, and for once there were only a few spots of rain.’
      • ‘But just this once, just for a few moments today I felt socially useful.’
  • once a —, always a —

    • proverb A person cannot change their fundamental nature.

      ‘once a whinger, always a whinger’
      • ‘Our position is, once a criminal, always a criminal and we will keep you in jail forever, and if we do let you out, we expect you back in three years anyway.’
      • ‘I was strictly a drummer, and once a drummer, always a drummer - the way I play is very rhythmic, very percussive.’
      • ‘As far as the Catholicism goes, there is a school of thought that says, ‘once a Catholic, always a Catholic’.’
  • once again (or more)

    • One more time.

      • ‘When we've done that place up to our liking, we'll sell it ready to move on once more.’
      • ‘The team is training at the club once more and is looking to recruit players for next season.’
      • ‘I have returned refreshed from Blackpool and am in custody of my own laptop once more.’
      • ‘No surprise then that the idea of a national identity card is once again being considered.’
      • ‘Recently he had had a lot of personal problems and once more turned to alcohol for comfort.’
      • ‘Now the company is involved in the scheme once again and plans are back on track.’
      • ‘Two weeks ago children were looking forward to being able to play outdoors once again.’
      • ‘We were impressed but once more became hopelessly lost as we attempted to leave the city.’
      • ‘We are hoping that once again you will help us out by selling some or all of the tickets.’
      • ‘They now live at an address they have asked us to keep secret for fear the yobs will catch up with them once more.’
      again, once more, once again, a second time, afresh, over again
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  • once and for all (or once for all)

    • Now and for the last time; finally.

      • ‘This is one issue that residents and pedestrians would like to see completed once and for all.’
      • ‘The aim should surely be to end these meetings once and for all, because all the goals have been reached.’
      • ‘We first meet her in a rehab facility, vowing to kick the habit once and for all.’
      • ‘It is time that the Government found a solution to this problem once and for all.’
      • ‘After all, surely this organisation could put the matter to rest once and for all.’
      • ‘It is better to strengthen your determination and stop smoking once for all rather than slowing it down.’
      • ‘Several months earlier he had still been despairing over the work and no doubt wondering whether another seizure would leave him speechless once for all.’
      • ‘I'd appreciate any information which serves to conclude this dispute once and for all.’
      • ‘THis time the vet gave him some drops to kill the fleas once and for all.’
      • ‘If there had ever been any doubters, they were silenced once and for all.’
      conclusively, decisively, finally, positively, absolutely, determinedly, definitely, definitively, irrevocably
      for good, for always, forever, permanently, finally, in perpetuity
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  • once and future

    • Denoting someone or something that is eternal or enduring.

      ‘side two contains four once and future hit singles’
      • ‘It's not entirely clear whether he's speculating how our once and future republic might defend itself, or giving tips to the present state.’
      • ‘I was driven to The Docks by my once and future boyfriend, Olivier, who works out at the gym roughly 17 times a week.’
      • ‘Ed Balls, the chancellor's once and future righthand man, gave every indication in the Commons that drastic action could be taken.’
      • ‘To pretend otherwise, to present herself as the once and future champion of a sovereign Britain, was to utter a whopper of leviathan proportions.’
      • ‘Your book deals with the once and future threat of smallpox.’
      • ‘Whether he likes it or not, Andy Reid is a once and future hero in Philadelphia, where his name initially generated jeers, not cheers.’
      • ‘The latter similarly sprang from a private association that dates to 1975, when the Cold War often shaped cultural strategies in Germany's once and future capital.’
      • ‘When the numbers were announced for the second ballot, the once and future national chief had five more votes than he needed to bring the election to an end.’
      • ‘The once and future Hollywood legend would like to sell you a few things via set-top box on his expanding interactive platform.’
      • ‘The government in Bonn packed its bags and relocated to the Reichstag, the once and future capitol edifice - meaning Berlin had to fit the bill as a nation's capital.’
  • once (or every once) in a while

    • From time to time; occasionally.

      • ‘Does she want her husband to say thank you once in a while, or help her out or just not go fishing at all?’
      • ‘Just once in a while, I stumble on a little piece of evidence that proves the world is as mad as I'm starting to think it is.’
      • ‘Every once in a while, it's a good idea to turn away from world events and take a look at the issues on one's doorstep.’
      • ‘Every once in a while, a science fiction film comes along that really shakes things up.’
      • ‘He introduced himself to me and asked if I'd like him to visit once in a while on his rounds.’
      • ‘But they do have a cute blog which you should check out every once in a while.’
      • ‘Every once in a while, friends and friends-of-friends come to live with us.’
      • ‘If, once in a while, we all take responsibility for our own doings maybe then we can all get on with a better life.’
      • ‘I dip into my comments section and reply every once in a while, mostly to show people that I read them.’
      • ‘He'd come back to the house every once in a while, blind drunk, making everyone's life a misery.’
      occasionally, from time to time, now and again, now and then, every now and again, every now and then, every so often, every once in a while, on occasion, on occasions, on the odd occasion, at times, sometimes, off and on, at intervals, periodically, sporadically, spasmodically, erratically, irregularly, intermittently, by fits and starts, in fits and starts, fitfully, discontinuously, piecemeal
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  • once or twice

    • A few times.

      • ‘Give the potatoes a good stir once or twice during cooking to help them break up a bit.’
      • ‘I've only met him once or twice and he just told me to keep training hard and I'll reap the rewards.’
      • ‘The fact that she might actually be in trouble crossed my mind once or twice but I shoved that away.’
      • ‘I had an opportunity to chat with him once or twice, and was immediately impressed by his fund of knowledge.’
      • ‘I will try to post perhaps once or twice whilst I am away, using my Dad's computer.’
      • ‘He glanced at me once or twice during the drive to his house but I remained silent.’
      • ‘He blinked once or twice and the dark shape ran back and forth in front of his gaze.’
      • ‘Then he visited me once or twice in Oxford, when he was off on one of his miserable summer holidays and was passing through.’
      • ‘We spoke on the phone once or twice and the next thing I knew she landed on my doorstep.’
      • ‘He has a very relaxed style and I have only seen him lose his temper once or twice since I arrived.’
  • once upon a time

    • 1At some time in the past (used as a conventional opening of a story).

      • ‘So once upon a time, way back in the 80s, New Order released a song called ‘Bizzare Love Triangle’ and it was not very good.’
      • ‘Something truly dreadful must have happened to these guys once upon a time because what else could explain their complete lack of any emotion on stage.’
      • ‘The boy starts his story once upon a time, knowing that's how stories begin.’
      • ‘Well, once upon a time, over a decade ago, I departed Istanbul possessed by the notion of reaching Moscow and riding the Trans-Siberian express all the way to China.’
      • ‘Apparently once upon a time, one of my relatives was thrown into prison for holding up stagecoaches on the highways of Sussex - just one of the stories which have filtered their way down through the generations.’
      • ‘Well once upon a time, which is when my story begins, there was a little boy who lived in that cottage and on a particular summer's afternoon he was standing out in the garden.’
      • ‘As the conventional story goes, once upon a time the West slumbered in intellectual darkness.’
      • ‘I remember once upon a time when I used to look good in clothes.’
      • ‘Maybe, once upon a time, without language skills or the ability to negotiate and rationalise and reason, we had to resort to violence.’
      • ‘Here goes: once upon a time, a couple years ago in an overblown naval base called San Diego you were giving a talk.’
      1. 1.1Formerly.
        ‘once upon a time she would have been jealous, but no longer’
        • ‘I have four (previously five, and once upon a time, nine) cats, so I have a little experience on this topic.’
        • ‘So I will start by referring to a matter which, once upon a time (before I learnt wisdom), would have had me jumping up and down with fury.’
        • ‘For example, once upon a time, the Tax Department did not have ready access to your bank account information and unemployment benefits.’
        • ‘Well, once upon a time, Americans would get their news by reading a newspaper or by watching television.’
        • ‘I mean, they were a good band - I loved them once upon a time, and yes I had teenage girl dreams about Robert Plant.’
        • ‘And don't rewrite your own history to pretend that you didn't need the same help once upon a time.’
        • ‘But nothing has ever happened and the quarry has remained quiet as a ghost town whereas, once upon a time, it employed some 100 men.’
        • ‘Trivial Pursuits was one of my favorite blogs once upon a time, and even after it shut down, I couldn't bring myself to get rid of the link.’
        • ‘Yes, once upon a time, I could read music, thanks to my grandfather.’
        • ‘And once upon a time, potential students could be forgiven for assuming that such a degree course was a worthwhile investment of time and money.’
        formerly, previously, in the past, at one time, at one point, once upon a time, on a former occasion, on one occasion, one time, in one case, time was when, in days gone by, in times gone by, back in the day, in times past, in the old days, in the good old days, long ago
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Middle English ones, genitive of one. The spelling change in the 16th century was in order to retain the unvoiced sound of the final consonant.