noun, noun or participle which takes 'suru', intransitive verb
Formal, rare term for the completion of a project, construction, or undertaking. Often used in official or literary contexts. The する form is intransitive.
新庁舎の竣成を祝う式典が行われた。
A ceremony was held to celebrate the completion of the new government building.
工事
The construction was completed as scheduled.