park vs bullpen

park and bullpen both are nouns.

Word	Noun	Adjective	Verb	Adverb
park	Yes	No	Yes	No
bullpen	Yes	No	No	No

park (noun)	bullpen (noun)
a facility in which ball games are played (especially baseball games)	a large cell where prisoners (people awaiting trial or sentence or refugees or illegal immigrants) are confined together temporarily
a gear position that acts as a parking brake	a place on a baseball field where relief pitchers can warm up during a game
a large area of land preserved in its natural state as public property
a piece of open land for recreational use in an urban area
a lot where cars are parked

park (verb)	bullpen (verb)
place temporarily
maneuver a vehicle into a parking space