This is the 3912th most frequent Dutch word.
voltooide
"Completed" or "finished."
Here, 'voltooide' is used as a verb in the past participle form in the present perfect tense.
Ik heb mijn huiswerk voltooide.
I completed my homework.
In this sentence, 'voltooide' is used as a past participle functioning as an adjective to describe the works.
De voltooide werken werden tentoongesteld in het museum.
The completed works were displayed in the museum.
In this case, 'voltooide' applies in a subordinate temporal clause describing the action's completion.