A dead cert
Meaning
Something that is absolutely certain to happen, succeed, or be true.
Origin
The phrase "a dead cert" galloped into the English language straight from the thrilling, often unpredictable world of horse racing in the 19th century. "Cert" is, quite simply, a clipped form of "certainty." But it wasn't enough for something to merely be a certainty in the high-stakes world of betting. To truly convey absolute, undeniable assurance, the emphatic adjective "dead" was tacked on. Think of it like a "dead stop" or a "dead heat"—it signifies an utter, complete finality. So, when a particular horse was so overwhelmingly favored that its victory was considered beyond any question, punters would declare it a "dead cert," a guaranteed win that even the most cautious gambler couldn't resist.
Examples
- Given his perfect record, winning the championship race is a dead cert for the star athlete.
- With all the evidence presented, a conviction against the defendant seemed like a dead cert to the jury.