Dictionary.com

certainly

[ sur-tn-lee ]
/ ˈsɜr tn li /
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adverb

with certainty; without doubt; assuredly: I'll certainly be there.
yes, of course: Certainly, take the keys.
surely; to be sure: He certainly is successful.

QUIZZES

QUIZ YOURSELF ON AFFECT VS. EFFECT!

In effect, this quiz will prove whether or not you have the skills to know the difference between “affect” and “effect.”
Question 1 of 7
The rainy weather could not ________ my elated spirits on my graduation day.

Origin of certainly

Middle English word dating back to 1250–1300; see origin at certain, -ly
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for certainly

certainly
/ (ˈsɜːtənlɪ) /

adverb

with certainty; without doubthe certainly rides very well

sentence substitute

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
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