Definition of one-to-one in English:


(North American one-on-one)

adjective & adverb

  • 1Denoting or referring to a situation in which two parties come into direct contact, opposition, or correspondence.

    as adjective ‘you can be treated by a therapist on a one-to-one basis’
    • ‘In one-on-one situations, go for the man in black every time.’
    • ‘Robinson is deadly in a one-on-one situation and it will be a thankless task for anyone having to mark him in midfield.’
    • ‘The way they contested one-on-one situations in that first half was encouraging.’
    • ‘On a one-on-one basis I will be getting little pointers off him regarding the season ahead.’
    • ‘So, in a one-on-one situation against the local tough guy, can a judo person subdue the bully?’
    • ‘He has a cool head and a great finish for the one-on-one situations.’
    • ‘Abbot requests they get Mary in for a one-on-one chat - he wants a précised focus group.’
    • ‘When having one-on-one chats with his gaffer they will converse in French.’
    • ‘He does not play well in one-on-one situations, nor does he help teammates.’
    • ‘If the rest of the linemen play well, Pryce will get more one-on-one situations.’
    • ‘In one-on-one situations, he is hardly dodged, and can win the ball nine times out of ten.’
    • ‘Five games will be played on one-on-one basis with entry fee being Rs.10 per person.’
    • ‘However, he has immense pace, is a cool and clinical finisher in one-on-one situations and has the ability to score sublime goals.’
    • ‘He was not going to be denied as he faced the keeper with a one-on-one opportunity and slid the ball home.’
    • ‘People just don't seem to have the capability of beating their opponents in a one-on-one situation.’
    • ‘That led to big rushing avenues for Barber and one-on-one opportunities for Toomer.’
    • ‘If so, he runs the risk of letting Shaq get more one-on-one opportunities close to the basket.’
    • ‘It would be impossible for the NYC to have an impact on individuals on a one-on-one basis.’
    • ‘That leads to some one-on-one opportunities for Hammer, and that's no good for an offense.’
    • ‘On three occasions York created one-on-one opportunities but each time the Oxton goalkeeper kept them out.’
    1. 1.1Mathematics In which each member of one set is associated with one member of another.
      • ‘What makes the system exemplify the natural number structure is that it has a one-to-one successor function with an initial object and the system satisfies the induction principle.’
      • ‘For example; the generally held view that dimension was invariant under one-to-one continuous mappings…’
      • ‘This is similar to the amount of calcium you need - about 1,000 to 1,200 mg., which is a one-to-one ratio.’
      • ‘The majority of rotations had a one-to-one ratio of students to preceptors.’
      • ‘To his amazement, the two kinds of plants occurred in a one-to-one ratio.’
      • ‘On the other hand, although any map between fields is one-to-one, it is fairly difficult to write down all the maps between any given pair of fields.’
      • ‘He proposed that, if elements combine to form compounds with other than a one-to-one ratio of atoms, the multiplicities be denoted by superscripted numbers, later transmuted to subscripts.’
      • ‘With a lower than one-to-one ratio of presenters to participants, many potential entrepreneurs had time to seek in-depth assistance from experts in a number of fields.’
      • ‘A one-to-one ratio is ideal, according to the American Cancer Society.’
      • ‘And yet, ciphers based on one-to-one substitutions, also known as monoalphabetic ciphers, can be easily broken by frequency analysis.’
      • ‘An earlier proposal asked for a one-to-one ratio starting in 2010.’
      • ‘This only works if there is a one-to-one ratio of viewers to displays.’
      • ‘Ordinary matter and dark matter loosely track each other in space, but not in a one-to-one ratio.’
      • ‘Watch springs would have been one of the very few items that would have produced the necessary one-to-one million ratio between the cost of steel and the value of the output.’
      • ‘We'd need a one-to-one ratio of professional refuters to loonies, just to keep up.’
      • ‘The simplest way to plot expression data is in a two-dimensional scatter plot and to calculate the correlation coefficients of all one-to-one combinations of experiments.’
      • ‘The appreciating of the lev against the US dollar pushed prices up in 2003, as dollar-denominated real estate trade switched to euro, at a one-to-one ratio, analysts commented.’
      • ‘In most developed nations, the ratio is one-to-one or lower.’
      • ‘Things may change rapidly in the world of business, but a few things are timeless, such as the famous one-to-one ratio of suckers born per minute.’
      • ‘The days when book orders had a one-to-one ratio are gone, but the company is still confident it can achieve a reasonable lead time of between six to 12 weeks.’


  • A face-to-face encounter.

    • ‘He's an excellent communicator with the lads - he'd be doing one-to-ones with them on the phone, meeting up with them.’
    • ‘But Liquid News could make a daily appearance in a 15 minute compressed version on News 24, without all the guests and commentary - just the reports and live one-to-ones with the reporters.’
    • ‘We noticed that in a smaller school you have more of a one-to-one with the teachers, and the school is like a community.’
    • ‘Lisa found herself being nominated to have a few one-to-ones with Nash, telling her she was toeing the line.’
    • ‘The school nurse could have a routine drop-in time in the school where there was an option of a one-to-one for the pupils to talk about issues that are bothering them.’
    • ‘Brown will not be present at their one-to-ones.’
    • ‘We do have team meetings but one-to-ones are a driving force of our business.’
    • ‘Firstly, Carroll is an unreliable waste-of-space who never turns up for things, is always surrounded by mates, and only engages in banter or is monosyllabic and unforthcoming in his one-to-ones with Allen.’
    • ‘At a one-to-one with a panel of cricketers on Sunday, the boys shot some questions which the professionals had a hard time answering.’
    • ‘The one-to-ones at St. Thomas helped to revitalize relationships within the congregation.’
    • ‘Good grief, there are Scottish sportsmen and women who don't do one-to-ones.’
    • ‘It was enough to start a career that 10 years later would have her talking one-to-one to the leader of her adopted home.’
    • ‘Most of my day is then spent in meetings - board, audit or one-to-ones with senior executives.’
    • ‘You have to feel for them: a couple of beers, then suddenly they're facing down a series of exuberantly delivered one-to-ones with some of the most sinister and surreal comic creations this side of The League Of Gentlemen.’
    • ‘Maehul is being treated on the Sonrise programme which entails him having up to 25 hours a week of one-to-ones with volunteers in a specially adapted playroom at their home.’
    • ‘What I can say is that he has worked hard on one-to-ones this month.’
    • ‘He dreads the limelight, enjoys quiet one-to-ones with his players, and has won his remarkable reputation because of his superb organisation, obsessive attention to detail and the depth of affection he engenders with everyone he meets.’
    • ‘It's much more intensive than a normal pre-school and he really benefits from the one-to-one.’
    • ‘You can attend group therapy, as well as one-to-ones with a psychiatrist.’
    • ‘Furthermore, I was having a one-to-one with my trainee, and he had absolutely no right to interfere in that process.’