Definition of certainly in English:


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sentence adverb
  • 1Undoubtedly; definitely; surely.

    ‘the prestigious address certainly adds to the firm's appeal’
    • ‘it certainly isn't worth risking your life’
    • ‘It may be true of good wine, but it is certainly not true of a good sommelier.’
    • ‘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 not true to say that trains do not stop in Guiseley because they are already full.’
    • ‘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.’
    • ‘While that may certainly have been true a decade ago, it cannot be said to be the case now.’
    • ‘It certainly is true that people need to avoid certain things if we're going to survive.’
    • ‘Now this may be true, and certainly supporters of Marx have tried hard to establish it.’
    • ‘There are others as well, of course, and one of them will almost certainly come true.’
    • ‘League consolidation is the main aim but a good cup run will certainly add to the already high team spirit.’
    • ‘Sitting in a full and happy cinema certainly adds another dimension to a film.’
    • ‘One of those deficiencies will certainly be addressed and you can guess which one.’
    • ‘It adds musical depth and certainly creates new levels of interest in most if not all of the tracks.’
    • ‘This certainly adds a realistic dimension to the film and brings the stories down to earth.’
    • ‘It certainly adds to the enjoyment, making the Vanquish an easier car to get to know.’
    • ‘It took a while to get to the front of the line, but it was certainly worth the wait.’
    • ‘It has taken many years for the book to reach us and it was certainly worth the effort.’
    • ‘On the east coast, a three-hour drive from Tofino, it is certainly worth a short stay.’
    • ‘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.’
    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. 1.1(in answer to a question or command) yes; by all means.
      ‘“A good idea,” she agreed. “Certainly!”’
      • ‘"Certainly, madam," he replied.’
      • ‘"Why, certainly," replied Hardin, amiably. "We're all scholars more or less."’
      • ‘"Why certainly. This one here, this cute plushie, is great for girls of that age."’
      yes, definitely, absolutely, sure, by all means, quite, indeed, of course, positively, naturally, without doubt, without question, unquestionably
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/ˈsərtnlē/ /ˈsərtnli/