世帯

• 読み: せたい
• ローマ字: setai
• 漢字の分解: 世 (se/sei) — generation, world; 帯 (tai/obi) — belt, zone, carry
• 発音: /se.ta.i/

意味

Household; family unit. A group of people living together and sharing living expenses under one roof.

A noun used in administrative, statistical, and official contexts. The Japanese census and resident registration system counts population by 世帯. Common compounds include 世帯主 (setainushi, head of household), 世帯数 (setaisuu, number of households), and 世帯年収 (setai nenshuu, household annual income). More formal and precise than 家庭 (katei, home/family).

例文

1. この地域の世帯数は年々増加している。
2. 一人暮らしの世帯が全体の三割を占めている。
3. 世帯の平均年収は地域によって大きく異なる。

使い方ガイド

場面: administration, statistics, housing

トーン: neutral

起源と歴史

From Sino-Japanese: 世 (se, generation/world) + 帯 (tai, belt/zone). Originally meant 'what one carries through life' — evolved to mean the unit of people living and managing life together.

文化的背景

時代: Modern

世代: All ages

社会的背景: Universal