a formal legal meeting in which evidence about crimes, disagreements, etc., is presented to a judge and often a jury so that decisions can be made according to the law。这个是英文解释,看这个解释,court还不是法院的意思,是法庭的意思,更多类似于庭审现场。
你说的球场的意思,是这个:a large flat surface that is shaped like a square or rectangle and that is used for playing games like tennis and basketball
a basketball/tennis court
就是说一块大的平面,方形或者矩形的,用来玩儿网球或者篮球的地方。
意思相差是很大,也没什么必然的联系。