This is the 11216th most frequent Polish word.
grupowym
"Grupowym" means "group" or "collective" in the context of something pertaining to a group.
In this sentence, 'grupowym' is an adjective modifying the noun 'projekcie' (project), indicating that the project involved a group or was organized in a group setting.
Uczestniczyliśmy w grupowym projekcie w szkole.
We participated in a group project at school.
Here, 'grupowym' describes the bus ('autobusem') as being associated with or designated for a group, emphasizing a collective aspect.
Wyjazd grupowym autobusem był bardzo wygodny.
Traveling with the group bus was very comfortable.
In this example, 'grupowym' modifies the noun 'trenerem' (coach), suggesting that the coach is specialized for handling group activities or training sessions.