junior school
US /ˈdʒuː.njər ˌskuːl/
UK /ˈdʒuː.njər ˌskuːl/

1.
小学校
a school for children between the ages of 7 or 8 and 11 or 12, typically following infant school and preceding secondary school
:
•
My daughter just started junior school this year.
私の娘は今年、小学校に入学しました。
•
The junior school building is next to the park.
小学校の建物は公園の隣にあります。