noun
rapid growth; high growth
Typically used for economies, companies, or industries experiencing fast expansion.
その国は高成長を続けている。
That country continues to experience rapid growth.
高成長企業に投資する。
Invest in high-growth companies.
高度成長 is a near-synonym often used for the 'high economic growth' period in Japan, but 高成長 is more general and can apply to any entity.
Compound of 高 (high) and 成長 (growth).