Dictionary.com
definitions
  • synonyms

surefire

[shoo r-fahyuh r, shur-]
See more synonyms on Thesaurus.com
adjective
  1. sure to work; foolproof: a surefire moneymaking scheme.
Show More

Origin of surefire

First recorded in 1915–20; sure + fire
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for sure-fire

Contemporary Examples

Historical Examples


British Dictionary definitions for sure-fire

sure-fire

adjective
  1. (usually prenominal) informal certain to succeed or meet expectations; assured
Show More
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

Word Origin and History for sure-fire

surefire

adj.

also sure-fire, by 1864, American English, from sure + fire (v.). Originally of rifles.

Show More
Online Etymology Dictionary, © 2010 Douglas Harper