lingwistyki

In a sentence

• Zajmuję się studiowaniem lingwistyki na uniwersytecie.

  I study linguistics at the university.

  The word "lingwistyki" is in the genitive case, indicating the field of study.

• Podręcznik do lingwistyki jest bardzo interesujący.

  The linguistics textbook is very interesting.

  Here, "lingwistyki" is also in the genitive case, describing the content focus of the textbook.

• Zainteresowanie lingwistyką wzrasta wśród studentów.

  Interest in linguistics is growing among students.

  "Lingwistyką" is in the instrumental case, showing the area in which interest is growing.