The meaning of CERTAINLY is in a manner that is certain : with certainty. How to use certainly in a sentence.

(Definition of certainly from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

You use certainly when you are agreeing with what someone has said. 'In any case you remained friends.'—'Certainly.' 'You keep out of their way don't you?'—'I certainly do.'

Define certainly. certainly synonyms, certainly pronunciation, certainly translation, English dictionary definition of certainly. adv. 1. Undoubtedly; definitely: This is certainly not my writing.

Dec 14, 2025 · The accident was certainly caused by human error. That was certainly sweet of him. 'I'm all grown up now' -'You certainly have (grown)!'

Certainly usually means ‘without doubt’ or ‘definitely’, and is used to show that you strongly believe something or to emphasize that something is really true: I’ll certainly remember this trip!

Definition of certainly. English dictionary and integrated thesaurus for learners, writers, teachers, and students with advanced, intermediate, and beginner levels.

CERTAINLY definition: with certainty; without doubt; assuredly. See examples of certainly used in a sentence.

certainly adverb (WITHOUT DOUBT) Add to word list A2 used to emphasize something and show that there is no doubt about it:

Master the word "CERTAINLY" in English: definitions, translations, synonyms, pronunciations, examples, and grammar insights - all in one complete resource.