No. 56 in Greek
οποίος
The Greek word "οποίος" means "which" or "who" in English, referring to choice or identification.
In a sentence
Αυτός είναι ο άνθρωπος ο οποίος με βοήθησε.
This is the man who helped me.
The word 'ο οποίος' is used as a relative pronoun introducing a subordinate clause that provides additional information about the antecedent 'ο άνθρωπος' (the man).
Είναι ένα θέμα για το οποίο δεν θέλω να μιλήσω.
It is a topic about which I do not want to speak.
The word 'ο οποίο' here is used as a relative pronoun referring to the antecedent 'ένα θέμα' (a topic), and it is also the object of the preposition 'για' (about).
Η απόφαση αυτή, την οποία πήρε η διοίκηση, ήταν σωστή.
This decision, which the administration made, was correct.
The word 'την οποία' functions as a relative pronoun connected to its antecedent 'Η απόφαση αυτή' (This decision) in the accusative case, giving more information about the decision.
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