sealed the deal

Syllable breakdown

Dictionary meaning

concluded a transaction, agreement, or arrangement successfully and definitively, typically after a period of negotiation, with the implication that the terms are now binding and neither party can easily withdraw; the metaphor derives from the ancient practice of authenticating documents with a wax seal, making them legally valid and tamper-evident; to seal the deal captures the moment of closure in any negotiation — commercial, diplomatic, or personal — when uncertainty resolves into commitment; the phrase is also used metaphorically for non-commercial agreements, such as when a particular gesture, gift, or action secures a desired outcome in a personal or professional relationship