say it: shuur
sure is an adjective and adverb meaning "having or feeling no doubt or uncertainty; confident and assured". It carries 10 recorded senses.
exercising or taking care great enough to bring assurance
“be certain to disconnect the iron when you are through”
“be sure to lock the doors”
certain to occur; destined or inevitable
“he was certain to fail”
“his fate is certain”
“In this life nothing is certain but death and taxes”
“he faced certain death”
“sudden but sure regret”
“he is sure to win”
(of persons) worthy of trust or confidence
“a sure (or trusted) friend”
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
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for sure 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.