This is the 67th most frequent Greek word.
ίδια
"Ίδια" means "the same" in English.
In this sentence, 'ίδια' acts as an adjective meaning 'same', modifying the noun 'ταινία'.
Είδαμε την ίδια ταινία χθες.
We watched the same movie yesterday.
Here, 'ίδια' is used as a pronoun to emphasize the consistency of the furniture.
Τα έπιπλα στο δωμάτιο είναι τα ίδια.
The furniture in the room is the same.
In this example, 'ίδιες' modifies the noun 'απόψεις', signifying similarity between the speaker's opinions and those of the listener.