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sure thing

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noun
something that is or is supposed to be a certain success, as a bet or a business venture: He thinks that real estate is a sure thing.
something assured; certainty: It's a sure thing that he'll refuse to cooperate.
interjection
surely; for sure; O.K.
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Origin of sure thing

An Americanism dating back to 1830–40
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use sure thing in a sentence

British Dictionary definitions for sure thing

sure thing
/ informal /

adverb
(sentence substitute) mainly US all right! yes indeed! used to express enthusiastic assent
noun
something guaranteed to be successful
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Idioms and Phrases with sure thing

sure thing

1

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]

2

Yes indeed, certainly, as in Are you coming tonight?—Sure thing! This use of the idiom as an interjection dates from the late 1800s.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
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