This is the 276th most frequent Estonian word.
otsuse
"Decision" or "choice."
Here, 'otsuse' is part of the phrase 'otsuse langetamine' (decision-making), describing the act of deciding.
Otsuse langetamine võtab aega.
Making a decision takes time.
In this sentence, 'otsuse' is the object of the verb 'tegi' (made), indicating a particular decision that was made.
Ta tegi otsuse rahus elada.
He made the decision to live peacefully.
In this context, 'otsuse' is used to specify the entity whose consequences are being dealt with, showing possession or origin.