sure-fire

listen to the pronunciation of sure-fire
English - English
certain to work

That hat should be a sure-fire way to spot him in a crowd.

certain to be successful; "a sure-fire way to get rich"
A sure-fire thing is something that is certain to succeed or win. a surefire best seller
certain to be successful; "a sure-fire way to get rich
surefire
{s} fool-proof, certain to succeed (Informal)
surefire
certain to succeed
sure-fire
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