Meaning and Usage
"淡水" (たんすい) means "fresh water," referring to water that is not salty, such as rivers, lakes, and ponds. It contrasts with "海水" (かいすい), which means seawater. This term is often used in scientific, environmental, and everyday contexts when distinguishing types of water.
Common Collocations
- 淡水魚 (たんすいぎょ): freshwater fish, used when talking about fish species living in non-salty water.
- 淡水湖 (たんすいこ): freshwater lake, a common geographic term.
- 淡水資源 (たんすいしげん): freshwater resources, often used in environmental discussions.
Register and Nuance
"淡水" is a neutral term, appropriate in both formal and informal contexts. It is commonly used in scientific and educational materials but also appears in everyday conversation when discussing water types.
Learner Tips
Be careful not to confuse "淡水" with "温水" (おんすい, warm water) or "海水" (かいすい, seawater). "淡水" specifically refers to water with low salt content. When talking about fish or bodies of water, using "淡水" correctly helps clarify the environment being discussed.