This is the 342nd most frequent Danish word.
lukkede
"Closed" or "shut."
Here, 'lukkede' is used as the past tense of the verb 'lukke' (to close), indicating an action completed in the past.
Han lukkede døren hurtigt.
He closed the door quickly.
In this sentence, 'lukkede' is apparently incorrect as an adjective (should be 'lukket'), but if allowed, it exemplifies a mistake where past tense verb form might replace a past participle.
Butikken var lukkede på grund af ferie.
The shop was closed due to vacation.
'Lukkede' here again is a past tense verb, implying an action performed, specifically in a reflexive sense caused by external conditions.