completion datenoun [ C ]
ukusthe date on which something such as a project will be finished, especially a date promised in a formal agreement:
estimated/projected/scheduled/target completion date He insisted the target completion date of November this year would not be moved to cut costs.
UK US closing date PROPERTY the date on which the sale of a property is complete and the property belongs to the buyer:
They found a property they liked, made an offer, signed there and then, paid a 5% deposit, and agreed a completion date.