This is the 5856th most frequent Turkish word.
tahminen
Approximately; roughly; estimatedly.
The word 'tahminen' is used here to indicate an estimation or a guess about the weather.
Tahminen bugün yağmur yağacak.
Probably it will rain today.
Here, 'tahminen' suggests an approximate time reference for the action.
Ben ona tahminen iki yıl önce rastladım.
I probably met him/her two years ago.
In this context, 'tahminen' is utilized to express an assumption about the duration of the task.