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Definition of “certainly” - English Dictionary

"certainly" in American English

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certainlyadverb

 us   /ˈsɜr·tən·li/
  • certainly adverb (KNOWING TO BE TRUE)

When said in answer to a question asking for help, certainly means yes: "Can you give me a hand?" "Certainly."
(Definition of certainly from the Cambridge Academic Content Dictionary © Cambridge University Press)







"certainly" in British English

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certainlyadverb

uk   /ˈsɜː.tən.li/  us   /ˈsɝː.tən.li/
  • certainly adverb (IN NO DOUBT)

A2 used to reply completely or to emphasize something and show that there is no doubt about it: She certainly had a friend called Mark, but I don't know whether he was her boyfriend. "This is rather a difficult question." "Yes, it's certainly not easy." "Do you think more money should be given to education?" "Certainly!" "Had you forgotten about our anniversary?" "Certainly not! I've reserved a table at Michel's restaurant for this evening."
A2 used when agreeing or disagreeing strongly to a request: "Could you lend me £10?" "Certainly." "Did you take any money out of my purse?" "Certainly not!"

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(Definition of certainly from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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