certainly

[ sur-tn-lee ]
See synonyms for certainly on Thesaurus.com
adverb
  1. with certainty; without doubt; assuredly: I'll certainly be there.

  2. yes, of course: Certainly, take the keys.

  1. to be sure; surely: He certainly is successful.

Origin of certainly

1
First recorded in 1250–1300; Middle English; certain + -ly

Words Nearby certainly

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use certainly in a sentence

British Dictionary definitions for certainly

certainly

/ (ˈsɜːtənlɪ) /


adverb
  1. with certainty; without doubt: he certainly rides very well

sentence substitute
  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