Meaning and Usage
"増大" (ぞうだい) means "increase" or "growth," often referring to a quantitative or measurable rise in something such as population, size, or amount. It is a formal noun and can also be used as a suru-verb (増大する).
Common Contexts
This word is frequently used in formal or written contexts, such as news reports, scientific discussions, or business settings. It often describes increases in numbers, volume, or intensity.
Collocations and Patterns
- 増大する: to increase or grow (used as a verb)
- ～の増大: increase of ~ (e.g., 人口の増大 - increase in population)
- 売上増大: increase in sales
- リスクの増大: increase in risk
Nuances and Register
"増大" carries a neutral to formal tone and is less common in casual conversation. It emphasizes a significant or notable increase rather than a small or gradual one.
Common Mistakes
Learners sometimes confuse "増大" with "増加" (ぞうか), which also means "increase." While both can be used similarly, "増加" is more general and common in everyday speech, whereas "増大" often implies a larger scale or intensity of increase. Use "増大" when emphasizing the magnitude or impact of growth.