|1.||chiefly (US) (sentence substitute) all right! yes indeed! used to express enthusiastic assent|
|2.||something guaranteed to be successful|
|a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.|
|a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.|
sure thing definition
a sure thing. A certainty, as in Making the bestseller list has been a sure thing for Stephen King. This usage originally alluded to a bet that one could not lose. [First half of 1800s]
Yes indeed, certainly, as in Are you coming tonight?Sure thing! This use of the idiom as an interjection dates from the late 1800s.