1.
developed country; advanced nation; industrialized country
A country with a highly developed economy, advanced technology, and high standard of living. Commonly used in news, politics, and economics.
日本は先進国の一つだ。
Japan is one of the developed countries.
先進国でも貧困問題は存在する。
Poverty issues exist even in developed countries.
G7は主要先進国の首脳が集まる会議だ。
The G7 is a summit where the leaders of the major developed nations gather.
The opposite term is 途上国 (developing country) or 発展途上国 (developing nation). 先進国 is the standard neutral term in Japanese media and official documents.
COMMON COLLOCATIONS:
- 主要先進国 — major developed nations
- 先進国首脳会議 — summit of advanced nations
- 先進国と途上国 — developed and developing countries
- 先進国の中で — among developed nations