This is the 11649th most frequent Spanish word.
frenada
The act of braking or slowing down.
Here, 'frenada' is used as a noun referring to the act of braking.
La frenada repentina del coche evitó el accidente.
The sudden braking of the car prevented the accident.
In this sentence, 'frenada' is used to describe the intensity of the braking action.
Después de la fuerte frenada, sentí el olor a caucho quemado.
After the strong braking, I smelled burned rubber.
Here, 'frenada' is again a noun, this time referring to the visible marks left by the braking.