countrywide
adj. B2 Upper Intermediate US //ˈkəntɹiˌwaɪd// UK //kˈʌntɹɪwˌaɪd// coun·try·wide
adj. happening or existing in every part of a country. You use this to describe something that covers the whole nation, like a law or a problem.
adj. extending throughout or affecting the entire territory of a nation. Typically used attributively to modify nouns related to distribution, policy, or infrastructure.
The government is building a countrywide network of high-speed trains.
The new law will be enforced countrywide starting next month to ensure consistency across all states.
The sudden drop in temperatures led to a countrywide shortage of heating oil, forcing the government to implement emergency rationing measures in the northern provinces.