This is the 5084th most frequent Portuguese word.
mergulhar
To dive or immerse.
Here, 'mergulhar' is used to imply the physical act of diving into water as an activity.
Ele gosta de mergulhar no mar durante o verão.
He likes to dive into the sea during summer.
In this context, 'mergulhar' is used metaphorically, meaning to engross oneself deeply in studying a topic.
Ela decidiu mergulhar profundamente no estudo da astronomia.
She decided to immerse deeply into the study of astronomy.
Here, 'mergulhar' metaphorically denotes engaging oneself in new projects or ventures without proper preparation.