This is the 6936th most frequent Polish word.
gminnym
"Related to a commune or municipality."
The adjective 'gminnym' here describes the park as pertaining to or managed by the municipality (gmina).
To jest budżet na rozwój infrastruktury w gminnym parku.
This is the budget for developing infrastructure in the municipal park.
The adjective 'gminnym' is used to indicate that the competition is organized at the municipal level.
W gminnym konkursie kulinarnym wzięło udział wielu uczestników.
Many participants took part in the municipal cooking competition.
Here, 'gminnym' qualifies the office, specifying it as belonging to or functioning at the level of the municipality.