This is the 1937th most frequent Spanish word.
reforzar
To strengthen or reinforce.
Here, 'reforzó' is used to signify making the learning of a topic stronger or more comprehensive by providing supplementary material.
El maestro reforzó la lección de ayer con ejercicios adicionales.
The teacher reinforced yesterday's lesson with additional exercises.
In this sentence, 'reforzar' denotes increasing the physical strength or stability of an object or construction.
Ligaron ramas adicionales para reforzar la estructura del refugio.
They tied additional branches to reinforce the structure of the shelter.
'Reforzar' here refers to strengthening or solidifying interpersonal relationships or abstract concepts such as trust.