zawczasu

In a sentence

• Zarezerwowałem hotel zawczasu, aby uniknąć problemów z miejscami.

  I booked the hotel in advance to avoid issues with accommodations.

  In this sentence, 'zawczasu' is used to indicate that the action of booking the hotel was done beforehand, preparatively.

• Uczniowie przygotowali się zawczasu na trudny sprawdzian.

  The students prepared in advance for the challenging exam.

  Here, 'zawczasu' conveys that the students took preparatory measures before an anticipated event, showing preemptive action.

• Dzięki temu, że zawczasu zaplanowaliśmy podróż, mogliśmy skorzystać z tańszych biletów.

  Thanks to the fact that we planned the trip in advance, we were able to take advantage of cheaper tickets.

  'Zawczasu' in this sentence emphasizes the proactive planning that allowed for a benefit.