certainly

 
Pronunciation: /ˈsəːt(ə)nli, -tɪn-/

adverb

[sentence adverb]
  • used to emphasize the speaker’s belief that what is said is true: the prestigious address certainly adds to the firm’s appeal
  • used to indicate that a statement is made as a concession or contrasted with another: our current revenues are certainly lower than anticipated
  • used to express complete agreement with something that has just been said: ‘A good idea,’ she agreed. ‘Certainly!’