Learn how to say Surely correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word surely:
without doubt; assuredly ⇒ things could surely not have been worse
without fail; inexorably (esp in the phrase slowly but surely)
(sentence modifier) am I not right in thinking that?; I am sure that ⇒ surely you don’t mean it?
(rare) in a sure manner
(archaic) safely; securely
(sentence substitute) (mainly US & Canadian) willingly; of course; yes