noun
completion
kuhm-PLEE-shuhn/kəmˈpliːʃn/
The bringing of an undertaking to its intended end.
The gardener brings the path to completion by fitting its final paving stone.

Etymology
The underlying image is filling something up, with com- probably strengthening that idea. From reaching fullness, the meaning extends to bringing something to its intended end.
In context
we're coming up to finishing the job now the thing is really important in Practical completion also referred to as PC is the end date of the contracts
More examples
- The new library is nearing completion.
- Payment is due upon completion of the repairs.
- She oversees each assignment from start to completion.
Forms
completion · completions
complete verb — To bring something to its intended end.
completeness noun — The state of having all necessary parts.
Similar words
- finishing
- Finishing emphasizes the activity of doing the last necessary work.
- conclusion
- Conclusion emphasizes an ending, not necessarily a finished task.