This is the 8540th most frequent Korean word.
가구주
Head of household.
Here, '가구주' refers to the oldest member governing the household.
가구주는 이 집에서 가장 오래된 사람이에요.
The household head is the oldest person in this house.
In this sentence, '가구주' is used to denote individuals fulfilling administrative responsibilities in households.
모든 가구주는 매해 통계 설문조사를 작성해야 합니다.
Every household head must complete the statistical survey every year.
This usage of '가구주' indicates a general demographic characteristic of village heads.