From Longman Dictionary of Contemporary Englishnational parkˌnational ˈpark ●○○ noun [countable] DLTPGland which is protected by a government because of its natural beauty or historical or scientific interest, and which people can visit Yosemite National Park
Examples from the Corpus
national park• Is not 90 percent of the Galapagos land surface a national park?• The Hwange national park alone is said to have 45,000 elephants: three times as many as the vegetation can support.• In an average August week over 250,000 people enter the national park.• In a $ 7.5 million effort to restore native plants and animals in the national park, the U.S.• Meanwhile, an application is pending to include the walk in the national park system. 