Definition of certainly in English:

certainly

adverb

  • 1[sentence adverb] Used to emphasize the speaker's belief that what is said is true.

    ‘the prestigious address certainly adds to the firm's appeal’
    • ‘It certainly is true that people need to avoid certain things if we're going to survive.’
    • ‘While that may certainly have been true a decade ago, it cannot be said to be the case now.’
    • ‘It may be true of good wine, but it is certainly not true of a good sommelier.’
    • ‘Now this may be true, and certainly supporters of Marx have tried hard to establish it.’
    • ‘Sitting in a full and happy cinema certainly adds another dimension to a film.’
    • ‘It took a while to get to the front of the line, but it was certainly worth the wait.’
    • ‘First, it is certainly true that some judges are liberal, much more so than in the past.’
    • ‘It is certainly true that it is very difficult to use economics as a predictor of markets.’
    • ‘On the east coast, a three-hour drive from Tofino, it is certainly worth a short stay.’
    • ‘It adds musical depth and certainly creates new levels of interest in most if not all of the tracks.’
    • ‘There are others as well, of course, and one of them will almost certainly come true.’
    • ‘On the other hand, if it turns out to be true, they certainly can claim to have been the first to mention it.’
    • ‘It is certainly worth spending a few hours exploring here, even if you choose not to spend the night.’
    • ‘It is telling them that and it is not true and it is certainly not proven to be true.’
    • ‘One of those deficiencies will certainly be addressed and you can guess which one.’
    • ‘This certainly adds a realistic dimension to the film and brings the stories down to earth.’
    • ‘It is certainly not true to say that trains do not stop in Guiseley because they are already full.’
    • ‘It certainly adds to the enjoyment, making the Vanquish an easier car to get to know.’
    • ‘League consolidation is the main aim but a good cup run will certainly add to the already high team spirit.’
    • ‘It has taken many years for the book to reach us and it was certainly worth the effort.’
    unquestionably, surely, assuredly, definitely, beyond question, without question, beyond doubt, unequivocally, indubitably, undeniably, irrefutably, indisputably, incontrovertibly, incontestably, obviously, patently, manifestly, evidently, plainly, clearly, transparently, palpably, unmistakably, conclusively, undisputedly, undoubtedly
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    1. 1.1Used to indicate that a statement is made as a concession or contrasted with another.
      ‘our current revenues are certainly lower than anticipated’
      • ‘Boris was most certainly not one of them, and I see no indication he has changed much since.’
      • ‘I have yet to decide, but am certainly going to give him my serious consideration.’
      • ‘It was certainly better than the average submission, so he decided to spend a little time on it.’
      • ‘For although it was indeed judged Council of the Year, it certainly was not on any public vote.’
      • ‘There is of course a matter of degree here, but certainly quantum physics is not in any kind of grey area at all.’
      • ‘The lad can certainly play in a number of positions, but where remains to be seen.’
      • ‘There is certainly no indication that the house was put to any other use during these gaps.’
      • ‘It certainly beats sitting on the carpet waiting for mum to decide that it is time for a change of scenery.’
      • ‘From all this it can be seen that it is certainly not the case that a contract for a lease is as good as a lease.’
      • ‘There is certainly no reason to take the second course of action over the first.’
      • ‘It was certainly quite a contrast from the last time when I saw him as Hilarion in Giselle.’
      • ‘They generally like to play on traditional courses, and this is certainly a break from that.’
      • ‘His spirits have certainly not been lowered by the slump afflicting several of his players.’
      • ‘Recent research is not conclusive, but certainly does not rule out the possibility.’
      • ‘We should remark, of course, that Cramer was certainly not the first to give this rule.’
      • ‘We can certainly, of course, shut ourselves off and say we can make nothing of it.’
    2. 1.2Used to express complete agreement with something that has just been said.
      ‘‘A good idea,’ she agreed. ‘Certainly!’’
      • ‘"Why, certainly," replied Hardin, amiably. "We're all scholars more or less."’
      • ‘"Certainly, madam," he replied.’
      • ‘"Why certainly. This one here, this cute plushie, is great for girls of that age."’

Pronunciation:

certainly

/ˈsəːt(ə)nli/