This is the 11260th most frequent Portuguese word.
mergulha
"Dives" (to plunge into water).
In this case, 'mergulha' metaphorically illustrates becoming deeply engrossed in one’s thoughts or mental state.
Ele mergulha em seus pensamentos ao caminhar.
He immerses himself in his thoughts while walking.
In this sentence, 'mergulha' is used to mean physically diving into the water, which is a common and literal use of the word.
Ela mergulha no lago para refrescar-se.
She dives into the lake to refresh herself.
Here, 'mergulha' metaphorically signifies delving deeply into topics, emphasizing thorough exploration.