1. The scheduled or actual date by which a project, task, or agreement is expected to be finished or finalized
The completion date for the construction project has been postponed to next month.
A data de conclusão do projeto de construção foi adiada para o próximo mês.
2. In real estate, the date on which a property transaction is finalized and ownership is transferred
We need to arrange financing before the completion date of the house purchase.
Precisamos arranjar financiamento antes da data de conclusão da compra da casa.