IPA: //ˈneɪʃənˌwaɪd//
KK: /ˈneɪʃənˌwaɪd/
Covering or affecting the entire country.
The new law will be implemented nationwide next year.
In a way that covers or affects the entire country.
The new policy will be implemented nationwide next year.
Nationwide → It is formed from "nation" (from Latin *natio*, meaning birth or people) and "wide" (meaning extending over a large area). The word "nationwide" refers to something that extends across an entire nation or country.
Think of a 'nation' as a group of people born in the same place, and 'wide' means it covers a large area — that's why nationwide means it covers the whole nation.