noun
rapid economic growth; high economic growth
Refers specifically to Japan's period of exceptionally fast economic expansion from the mid-1950s to the early 1970s. Often used in historical, economic, or social contexts.
高度経済成長期には、多くの地方から都市へ人口が流入した。
During the period of rapid economic growth, many people moved from rural areas to cities.
日本の高度経済成長は、輸出主導型の産業政策によって支えられた。
Japan's high economic growth was supported by export-oriented industrial policies.
Compound of 高度 (high degree) + 経済 (economy) + 成長 (growth). The term became fixed in Japanese to describe the specific post-war boom period.