local, neighbourhood/neighborhood (esp. AmE)
city, downtown (AmE), municipal, urban
public
country (BrE)
county (AmE), national, state (AmE)
The mountain has been designated as a national park.
the national parks system

beautiful
historic
25-acre, 45-acre, etc.
dog (AmE)
memorial, sculpture
waterfront
game, marine, safari (esp. BrE), wildlife
amusement, leisure (BrE), recreational (esp. AmE), theme, water
indoor, outdoor (both AmE)
an indoor park for skateboarders

ball (usually ballpark), baseball (both AmE)
skate, skateboard
mobile-home (esp. AmE), RV (AmE), trailer (esp. AmE)
business, industrial, office (esp. AmE), retail (BrE)

go to, visit
They go to the park most Sundays.

design, landscape, lay out
a beautifully landscaped park

build, create, develop
He built parks and highways in New York.

manage
a park managed by the Department of Parks and Recreation

overlook
a cafe overlooking the park

bench
entrance
boundary
area
service, system (AmE)
I work as a ranger in the city's park system.

parks department
She works for the parks department.

employee, manager, official, ranger
The lion was shot dead by a park ranger.

visitor

at a/the park
We met at Hyde Park. (BrE)

in a/the park
They went for a walk in the park.
We met in Central Park.

carefully
neatly
All the cars were neatly parked on the street.

badly
quickly
illegally (esp. BrE)
Motorists parked illegally are fined £50.

Park is used with these nouns as the subject:
caravan, truck

Park is used with these nouns as the object:
bicycle, bike, car, motorcycle, truck, van, vehicle