This is the 2735th most frequent Turkish word.
ölen
"Ölen" means "the one who died" or "deceased" in English.
The word 'ölen' is the present participle form of the verb 'ölmek' (to die), meaning 'the one who died' or 'dead' in this context. It modifies 'kuş' (bird) as an adjective.
Ölen kuşun kıyıda yatışı beni üzmüştü.
The dead bird lying on the shore had saddened me.
Here 'ölen' describes 'insanlar' (people) as 'the ones who died,' functioning adjectivally and conveying a participle usage.
Dün, kazada ölen insanlar için dua ettik.
Yesterday, we prayed for the people who died in the accident.
In this sentence, 'ölen' describes 'şair' (poet), specifying 'the one who died,' with 'ölen şair' forming a descriptive phrase.