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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.

“Carmakers have raised them a lot, certainly faster than they’ve raised prices.”

From The Wall Street Journal

It certainly complicates how investors will view Monday’s earnings.

From Barron's

That’s certainly one consideration, but also, ‘is this something I can afford?”

From Los Angeles Times

The initial contact was certainly outside the box, but continued into it and the United forward flung himself to the floor.

From BBC

DAVILA: I certainly aspire for us to be a household name.

From The Wall Street Journal