consummates
Brings to completion
Consummates is the verb form of consummate, meaning to bring to completion or make perfect.
A deal or agreement is consummated when finalized: The merger consummates years of negotiation.
A marriage is consummated through first sexual intercourse, making it legally binding.
The word carries a sense of fulfillment—the final act that makes something whole.
finalizes
Makes official and permanent
accomplishes · achieves · fulfills · realizes · culminates · executes · seals · clinches · crowns · caps
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