seal the deal
Americanidiom
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to complete or successfully negotiate an agreement.
If our top executive can't seal the deal, no one can.
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to secure or ensure a successful conclusion: A last-minute goal sealed the deal for Baltimore.
He had aced both interviews, and if the director liked him that would seal the deal.
A last-minute goal sealed the deal for Baltimore.
Etymology
Origin of seal the deal
First recorded in 1950–55
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
After the meeting he got his father to wire the Japanese company $50 to seal the deal, he recounted in his autobiography.
From The Wall Street Journal ● Sep. 7, 2026
That’s enough to keep the Fed on high alert, economists say, but not enough to seal the deal for a rate hike.
From MarketWatch ● Aug. 11, 2026
If it wasn’t already clear that Odenkirk isn’t your conventional action star, his new film “Normal” should seal the deal.
From Los Angeles Times ● Apr. 15, 2026
Usually it was your management record, and your relative success with the respective budgets you'd been given, that would seal the deal.
From BBC ● Apr. 3, 2026
What he’d say next would have to seal the deal.
From "We'll Fly Away" by Bryan Bliss
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