sure-fire

Variant of surefire

surefire definition

sure·fire or ☆ sure-fire sure′·-fire′ (-fīr′) (s̸ho̵or′fīr′)

adjective

Informal sure to be successful or as expected; that will not fail

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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