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Definitely; for certain. A: "How many people are coming to dinner tonight?" B: "I can't say for sure—my family tends to just show up without responding to invitations." Oh, I'll be there, for sure—I'm just running a little late.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
for certain. I will be there for sure. Sally: Are you ready to go? Bob: For sure. Sally: Then, let's go.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
for ˈsure(informal) definitely: ‘What time will you be here?’ ‘I don’t know for sure yet.’ ♢ I’ll be there for sure; don’t worry.
Farlex Partner Idioms Dictionary © Farlex 2017
phr. absolutely. (The same as fer shur.) I’ll be there, for sure.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
Certainly; unquestionably: We'll win for sure.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Certainly, without doubt; also, I agree. This seemingly modern phrase dates from the late 1500s, at least in the first sense. John Milton used it in Paradise Regained (1671), “Now, now, for sure deliverance is at hand.” The second sense is somewhat more recent, and is often put as that’s for sure. C. Bonington had it in Annapurna South Face (1971), “We can’t do it in the next two days.—That’s for sure.”
The Dictionary of Clichés by Christine Ammer Copyright © 2013 by Christine Ammer