This is the 16020th most frequent Polish word.
trzymała
"Trzymała" means "she/it held" in English.
The word 'trzymała' is used in the past tense to describe an action of holding or gripping something.
Ona trzymała książkę w rękach.
She was holding a book in her hands.
Here, 'trzymała' conveys the act of keeping or maintaining something, specifically, keeping a secret.
Wtedy trzymała w sekrecie swoje plany.
At that time, she kept her plans a secret.
In this case, 'trzymała' refers to maintaining a state of composure or determination.