Definition of addition in English:

addition

noun

  • 1The action or process of adding something to something else:

    ‘the hotel has been extended with the addition of more rooms’
    • ‘Bolton's nightlife is due to expand again with the addition of another trendy wine bar.’
    • ‘The garden will continue to be developed in the future with the addition of an aromatic walkway planned for next year.’
    • ‘This classic snack can be varied with the addition of thinly sliced smoked chicken or turkey and avocado.’
    • ‘It can work on hair that is fine or thin with the addition of hair pieces or extensions.’
    • ‘The sweltering conditions will run into the middle of next week with the addition of the odd thunderstorm.’
    • ‘The colour range favours warm and tropical colours, with the addition of blue and sea green.’
    • ‘A wakeboard is similar in shape to a snowboard, with the addition of two small fins on the underside.’
    • ‘This is not the case these days; with the addition of violence, things have turned a bit uglier.’
    • ‘Turkey and the trimmings can be improved dramatically with the addition of a well chosen wine accompaniment.’
    • ‘The new year has brought some dramatic changes at the loch with the addition of three new fisheries.’
    • ‘With the addition of a few commas and the striking out of the one paragraph, the deal already on the table will finally go through.’
    • ‘It was tender, juicy and tasty, especially with the addition of the salty pork wrapping.’
    • ‘Make old timber look new with the addition of vinegar and blasting it with a blowtorch.’
    • ‘The camera obscura box reproduced these conditions and clarified the images with the addition of a lens.’
    • ‘The town of Belmullet looks splendid and bright with the addition of new lights.’
    • ‘A community transport scheme has been given a major boost with the addition of an extra vehicle.’
    • ‘At a later stage they were subsequently sold as Van Goghs, occasionally with the addition of a false signature.’
    • ‘In the kitchen, a truly rural feel is added to the kitchen with the addition of a solid-fuel Aga.’
    • ‘You can make them more formal with the addition of a diamanté brooch to use as a clasp on the front or the back.’
    • ‘Division two saw the usual suspects duelling it out with the addition of some new faces.’
    inclusion, adding, adding in, incorporation, introduction, insertion
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    1. 1.1[count noun] A person or thing added or joined:
      ‘you will find the coat a useful addition to your wardrobe’
      • ‘The new additions to the gameplay and this new story keep me up till way past my bedtime.’
      • ‘Other new additions include a search facility from Google and an expanded links section.’
      • ‘See all the new additions to the city skyline in our picture gallery.’
      • ‘The intention is to add more tours to the database each year so that visitors will be able to return and catch up on the latest additions.’
      • ‘There will also be several additions to teaching programs in the faculty of education.’
      • ‘Even beetroot and spinach can be rendered palatable with a little juicing and some judicious additions.’
      • ‘Students will not have to pay for these additions until we begin to use the facilities.’
      • ‘A survival course is one of the latest additions to the club's list of extreme sports.’
      • ‘With many riders returning, there are also many new promising additions to the club.’
      • ‘The new design was intended to create more internal space, which meant stripping away the additions at the back.’
      • ‘But opposition councillors found a number of unexplained additions in the report.’
      • ‘They too have a number of big additions to their side from last year in attack.’
      • ‘This is the same encyclopedia, with multimedia additions, that used to take up a huge bookshelf.’
      • ‘While both look to be excellent additions, it remains to be seen whether or not this season will be as memorable as the last.’
      • ‘But they have spent wisely and have made a lot of good additions to their squad.’
      • ‘Apart from taking up the renovation works, a few additions have been made in the premises.’
      • ‘There seemed to be more extended scenes rather than whole new scenes but there were one or two excellent new additions.’
      • ‘We'll be watching forthcoming additions to Guardian Unlimited with interest.’
      • ‘There are lots of new additions showcased and you're sure to find something interesting.’
      • ‘A stationary shop in George Street has been branching out with some unusual additions to its stock.’
      supplement, appendage, adjunct, addendum, add-on, extra, accompaniment, extension, rider
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  • 2The process of calculating the total of two or more numbers or amounts:

    ‘she began with simple arithmetic, addition and then subtraction’
    • ‘The Count Hoot section of the site helps with addition and subtraction as well.’
    • ‘As one might expect, multiplication of infinite decimals is more complicated than addition.’
    • ‘To see the sort of difficulty that can arise, let us consider addition first.’
    • ‘Such a machine would be able to carry out complex operations using only the mechanism for addition.’
    • ‘Basically they had to devise methods of multiplication and division which only involved addition.’
    • ‘The addition of three points to his team's total is a minor calculation.’
    • ‘She showed that babies can even do addition and subtraction, of a rudimentary sort.’
    • ‘Our old maths teacher was teaching addition to the kids and she asked us to look on as she went along with her class.’
    • ‘The only way is up - addition works in three dimensions but what about multiplication?’
    • ‘They are great at the game of subtraction, when the game of parliamentary politics is addition.’
    • ‘Yet addition and also subtraction are only an extension of counting.’
    • ‘That's likely a trace to the way many of us learned to count and do basic addition.’
    • ‘In this addition sum each letter represents a digit, different letters being different digits.’
    • ‘If the slip is accompanied by a number of items, the payee's addition of the sums is verified.’
    • ‘That is addition, multiplication and the two inverse operations of subtraction and division.’
    adding up, counting, totalling, computation, calculation, reckoning, tallying, summation
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    1. 2.1Mathematics The process of combining matrices, vectors, or other quantities under specific rules to obtain their sum or resultant:
      [with modifier] ‘the concepts of vectors and vector addition’
      • ‘If you want to know the total force which is exerted on the body, you have to carry out a vector addition.’
      • ‘We were reviewing vector addition this evening at a study session.’
      • ‘Superimposing the two logical operations we can define binary addition.’
      • ‘This suggests that Component 3 is not a vector addition but could be a single component.’
      • ‘We have now defined two operations for matrices, addition and multiplication.’

Origin

Late Middle English: from Latin additio(n-), from the verb addere (see add).

Pronunciation:

addition

/əˈdɪʃ(ə)n/