they finished, they ended
Comenzaron a discutir sobre Dios, y acabaron por perder la paciencia.
They began to argue about God, and ended up losing their patience.
— Fresas salvajes (1957)
Te sorprendería el número de estudiantes que acabaron los deberes.
You’d be surprised by the number of students who finished their homework.
They finished off the enemy.
Me parece que aún no acabaron contigo.
I don't think they're finished with you yet.
— Impacto (1981)