This is the 5945th most frequent Polish word.
zrozumiał
"Zrozumiał" means "he/she understood" in English.
Here the word "zrozumiał" is used as a past tense verb meaning "understood," indicating that the subject comprehended the information.
Mój brat zrozumiał wszystkie wyjaśnienia dotyczące matematyki.
My brother understood all the explanations regarding mathematics.
In this sentence, "zrozumiał" is again used in the past tense, signifying that the subject gained understanding of a reason or cause.
Janek zrozumiał, dlaczego spóźniłem się na spotkanie.
Janek understood why I was late for the meeting.
Here "zrozumiał" forms part of a question in past tense, asking whether the subject comprehended the essence or definition of a word.