This is the 5140th most frequent Turkish word.
idik
"Idik" means "we were" in English.
Here, 'idik' is used for the first-person plural past tense of 'to be', indicating a state of being from the past.
Eskiden çok mutluydik.
We used to be very happy.
'Idik' here refers to being located somewhere in the past, specifically for the first-person plural.
O gün parkta idik.
We were at the park that day.
'Idik' in this sentence expresses existence or state as a group in the past, again in the first-person plural form.