zrozumiał

In a sentence

• Mój brat zrozumiał wszystkie wyjaśnienia dotyczące matematyki.

  My brother understood all the explanations regarding mathematics.

  Here the word "zrozumiał" is used as a past tense verb meaning "understood," indicating that the subject comprehended the information.

• Janek zrozumiał, dlaczego spóźniłem się na spotkanie.

  Janek understood why I was late for the meeting.

  In this sentence, "zrozumiał" is again used in the past tense, signifying that the subject gained understanding of a reason or cause.

• Czy zrozumiał znaczenie tego słowa?

  Did he understand the meaning of this word?

  Here "zrozumiał" forms part of a question in past tense, asking whether the subject comprehended the essence or definition of a word.