care

In a sentence

• Cartea pe care o citești este foarte interesantă.

  The book that you are reading is very interesting.

  In this sentence, "care" is used as a relative pronoun introducing the subordinate clause that modifies the noun 'cartea' (the book).

• Oamenii care locuiesc aici sunt prietenoși.

  The people who live here are friendly.

  Here, "care" serves as a relative pronoun to introduce the relative clause that describes 'oamenii' (the people).

• Nu știu despre ce anume vorbeai, dar înțeleg tema la care te refereai.

  I don't know exactly what you were talking about, but I understand the topic to which you were referring.

  In this example, "care" is a relative pronoun that connects the relative clause to its antecedent 'tema' (the topic).