This is the 8642nd most frequent Catalan word.
encertar
To guess correctly or to hit the mark.
Here, 'encertar' is used in the sense of 'guessing or identifying the correct answer'.
Va encertar la resposta correcta al concurs.
He got the correct answer in the contest.
In this instance, 'encertar' conveys the meaning of 'hitting a target'.
Si encertes la pilota al cercle, guanyaràs el premi.
If you hit the ball into the circle, you will win the prize.
Here, 'encertar' is utilized in the sense of 'making a correct decision or choice'.