This is the 10333rd most frequent Spanish word.
concentró
"Concentró" means "he/she/it concentrated" or "you (formal) concentrated."
Here, 'concentró' is used to indicate the action of focusing one's attention or efforts on a specific activity or goal.
Él se concentró en sus estudios para aprobar el examen.
He focused on his studies to pass the exam.
In this usage, 'concentró' describes the process of a substance becoming denser or more consolidated, usually by evaporation or reduction.
El jugo se concentró después de horas en el fuego.
The juice became concentrated after hours on the fire.
In this context, 'concentró' denotes the act of gathering or focusing attention or interest onto a particular point or subject.