Understanding 世帯 (せたい)
The word 世帯 refers to a household, meaning a group of people living together in one residence, often sharing expenses and daily life. It is commonly used in official contexts such as statistics, surveys, and demographic studies.
Usage and Nuance
世帯 is a formal term often seen in government reports or census data. It emphasizes the unit of living together rather than just a family by blood. For example, a 世帯 can include single-person households, roommates, or extended families living under one roof.
Common Collocations
- 世帯数 (せたいすう): number of households — used in demographic statistics.
- 一世帯あたり (いっせたいあたり): per household — often used when discussing averages like income or consumption.
- 世帯主 (せたいぬし): head of the household — the person responsible for managing the household.
Register and Politeness
This term is neutral and formal, suitable for written and spoken contexts involving official or statistical information. It is less common in casual conversation where 家族 (family) or 家 (house) might be used instead.
Common Mistakes
Learners sometimes confuse 世帯 with 家族. Remember, 世帯 focuses on the living arrangement and shared household, which may not always be a family by blood. For example, a single person living alone is still one 世帯.