This is the 14675th most frequent Polish word.
próbne
"Próbne" means "trial" or "practice."
In this context, 'próbne' defines exercises provided to trainees as preliminary or test activities.
To są próbne ćwiczenia dla kursantów.
These are trial exercises for the trainees.
In this sentence, 'próbne' describes the versions of software that are meant for testing or evaluation purposes.
Kupiliśmy próbne wersje oprogramowania, aby je wypróbować.
We bought trial versions of the software to test them.
Here, 'próbne' refers to a question intended for rehearsal or preparation before the actual exam.