Meaning and Usage
The word 減少 (げんしょう) means "decrease," "reduction," or "decline." It is commonly used in formal or written contexts to describe a quantitative drop in numbers, amounts, or levels, such as population, sales, or natural resources.
Common Contexts
You will often see 減少 used in news reports, business discussions, environmental topics, and statistics. It implies a measurable and often gradual decline.
Collocations and Patterns
- 減少する: to decrease (verb form)
- 減少傾向 (けいこう): decreasing trend
- 減少率: rate of decrease
- 減少を食い止める: to stop or prevent a decrease
Nuances and Tips
Using 減少 suggests a factual and often negative change. It is more formal than words like 減る (へる), which is more casual and used in everyday conversation. Learners should avoid confusing 減少 with 減る; 減少 is often used in written or formal speech, while 減る is more common in spoken language.
Summary
Use 減少 when talking about measurable decreases in formal or written contexts, especially in statistics, business, or environmental issues. Remember to pair it with verbs like する to express the action of decreasing.