Related topics: Law
the state of being finished:
The house is nearing completion (=almost finished).
The project has a completion date of December 22nd.
the act of finishing something
The job is subject to your satisfactory completion of the training course.
on completion (of something)
On completion of the building, they make a final inspection.
the final point in the sale of a house, when all the documents have been signed and all the money paid