oznaczała

In a sentence

• Ona oznaczała zmianę w sposobie myślenia wielu ludzi.

  She signified a change in the way many people thought.

  Here, 'oznaczała' is used to indicate that she represented or was a symbol of change, functioning as the past tense of the verb 'oznaczać' for a singular feminine subject.

• W tamtych czasach ta decyzja oznaczała odwagę i determinację.

  At that time, this decision signified courage and determination.

  In this sentence, 'oznaczała' is used to express what the decision symbolized or meant in the past, again as the past tense of 'oznaczać' associated with a feminine noun.

• Każda tablica oznaczała coś ważnego w życiu wioski.

  Each plaque signified something important in the life of the village.

  Here, 'oznaczała' conveys the idea of signification or representation about the plaques, also in the context of the past tense for a feminine noun.