This is the 11697th most frequent Portuguese word.
piscar
To blink.
The word 'piscar' in this sentence refers to the action of quickly closing and opening ones eye, particularly as a gesture of acknowledgment or understanding.
Ela piscou para mim quando me viu.
She winked at me when she saw me.
Here, 'piscar' means to emit flashes of light intermittently, describing the repeated lighting pattern of the car’s headlight.
O farol do carro estava piscando sem parar.
The car’s headlight was blinking steadily.
In this context, 'piscar' involves the natural reflex action of closing and opening one's eyes briefly, which serves to lubricate the eyes.