seal the deal

[ seel thuh deel ]

idiom

1. to complete or successfully negotiate an agreement:

   If our top executive can't seal the deal, no one can.

2. 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.

Word History and Origins

Origin of seal the deal¹

First recorded in 1950–55

Example Sentences

Therefore, it felt imperative that Raducanu opened the tie with a win and gave an opportunity to Boulter to seal the deal against 31st-ranked Fernandez.

From BBC

Skenes’ girlfriend, Olivia Dunne, the popular Louisiana State gymnast and influencer, also took to X on Friday to help her boyfriend’s team seal the deal.

From Los Angeles Times

Comedy Central and some secondhand smoke helped seal the deal.

From Los Angeles Times

Comedy Central and some secondhand smoke helped seal the deal.

From Los Angeles Times

There is no debate that victory is now expected, but are Packer's side better equipped to seal the deal this time around?

From BBC