Meaning of the word sure-fire in English

What does sure-fire mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

sure-fire

US /ˈʃʊr.faɪr/
UK /ˈʃʊr.faɪr/
"sure-fire" picture

Adjective

1.

certain to succeed

Example:
Investing in that company is a sure-fire way to make money.
He has a sure-fire plan to win the competition.
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