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Synonyms

certainly

American  
[sur-tn-lee] / ˈsɜr tn li /

adverb

  1. with certainty; without doubt; assuredly.

    I'll certainly be there.

  2. yes, of course.

    Certainly, take the keys.

  3. to be sure; surely.

    He certainly is successful.


certainly British  
/ ˈsɜːtənlɪ /

adverb

  1. with certainty; without doubt

    he certainly rides very well

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

  1. by all means; definitely: used in answer to questions

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of certainly

First recorded in 1250–1300; Middle English; certain + -ly

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

"But certainly, inside the club we're in constant communication and we're here to support and help in whatever way we can."

From BBC

That’s not quite as bad as some economists had feared given the duration of the 2025 shutdown, but it certainly weighed heavily on the quarter’s growth.

From Barron's

“The fact that we’re shooting in L.A., it’s certainly ignited a flame for a lot of agents and managers in town hoping to get their clients working here,” Roberts said.

From Los Angeles Times

The constitutional court said back in 2001 that "as time passes, the relative importance of standpoints and positions of people in a totalitarian state certainly has not vanished, but it has definitely decreased".

From Barron's

"Celtic lacked a lot of power and intensity, certainly in a defensive capacity," he said.

From BBC