This is the 8582nd most frequent Portuguese word.
acertarem
"Acertarem" means "to get right" or "to hit the mark" (in the subjunctive or future subjunctive form for "they" or "you all").
In this sentence, 'acertarem' is used to mean 'to finalize' or 'to fix,' referring to the action of ensuring that details are correct or suitable.
Eles precisam acertarem os detalhes do projeto antes da apresentação.
They need to finalize the details of the project before the presentation.
Here 'acertarem' means 'to hit' or 'to aim correctly,' referring specifically to succeeding in hitting the intended target.
Se os jogadores acertarem o alvo, ganharão mais pontos.
If the players hit the target, they will earn more points.
In this instance, 'acertarem' implies 'getting right' or 'choosing correctly,' relating to answering a question or solving a problem correctly.