say it: SUR-tuhn-lee
certainly is an adverb meaning "definitely or positively (`sure' is sometimes used informally for `surely')". It carries one recorded sense.
definitely or positively (`sure' is sometimes used informally for `surely')
“the results are surely encouraging”
“she certainly is a hard worker”
“it's going to be a good day for sure”
“they are coming, for certain”
“they thought he had been killed sure enough”
“he'll win sure as shooting”
“they sure smell good”
“sure he'll come”
colloquialism
Definitions, synonyms and semantic relations for certainly come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.