Skip to definition.
Get the FREE one-click dictionary software for Windows or the iPhone/iPad and Android apps

Adverb: certainly  sur-t(u)n-lee
  1. Definitely or positively
    "she certainly is a hard worker";
    - surely, sure, for sure, for certain, sure enough, sure as shooting
Interjection: certainly  sur-t(u)n-lee
  1. Indicates an affirmative response
    - ay, aye, sure, uh-huh, yah [UK], yea, yeah, yep, yes, yup, ya [S.Africa]

Encyclopedia: Certainly