校庭

1. Origins, structure, and basic meaning

• Structure: The written form is 校庭, read こうてい. Elements for school and yard combine to denote the outdoor school area used for play or exercise.
• Basic usage: 校庭で遊ぶ marks the place where an activity occurs, while 校庭に水たまりができる marks the location where puddles form.

2. Common pitfalls and similar expressions

• Place of activity
  • It is the outdoor school space where the children play during lunch. Example: 昼休みに子どもたちが校庭で遊んでいる。 — The children are playing in the schoolyard during lunch.
• Location of a change
  • After the rain, the schoolyard is the location where large puddles have formed. Example: 雨の後、校庭には大きな水たまりができた。 — Large puddles formed in the schoolyard after the rain.