Usage patterns
グラウンドで練習するto practice on the field
The baseball team practices on the field every day.
グラウンドを整備するto groom/maintain the field
They groomed the field before the match.
グラウンドに集合するto gather at the field
Everyone, please gather on the field.
グラウンドを走るto run around the field
In the morning, the students run around the field.