This is the 626th most frequent Indonesian word.
tentu
"Certainly" or "surely."
In this sentence, 'tentu' is used to express certainty or assurance about the speaker's action.
Saya tentu akan datang ke acara tersebut.
I will certainly attend the event.
In this context, 'tentu' is utilized to emphasize the certainty of the situation described.
Hal itu tentu membutuhkan waktu yang cukup panjang.
That certainly requires quite a long time.
Here, 'tentu' is used to inquire about certainty or confirmation from the listener regarding their action.