This is the 845th most frequent Persian word.
توانست
"توانست" means "was able to" or "could."
In this sentence, 'توانست' is used to indicate succeeding or managing to do something.
او توانست کار خود را به خوبی انجام دهد.
She managed to perform her work well.
Here, 'توانست' implies potential capability in a conditional context.
اگر او تمرین کند، توانست به هدفش برسد.
If he practices, he could manage to achieve his goal.
In this context, 'توانستم' is utilized to express a completed ability or action in the past.