864 期間: term, period: The exam period is from the 10th to the 15th. 3174 支出: expense, spending: Our household expenses are 150,000 yen this month. 4722 出版: publishing, publication: This book was published 15 years ago. 7587 脱落: be omitted; drop out: 15 people dropped out of the marathon yesterday. 7822 世帯: home; household: 150 families live in this apartment house.