1) Arcadian mythology 2) Athletic field 3) Field 4) Palestra 5) Playing area 6) Playing field 7) Roman gymnasium 1) Arena 2) Palestra 3) School 
The palaestra (ə; παλαίστρα) was the ancient Greek wrestling school. The events that did not require a lot of space, such as boxing and wrestling, were practised there. The palaestra functioned both independently and as a part of public gymnasia; a palaestra could exist without a gymnasium, but no gymnasium could exist without a palaestr...
wrestling school; gymnasium
• (n.) See Palestra.
Private school in ancient Greece in which boys were trained in physical exercises. The term is also used for that part of the Gymnasium set aside for boxing and wrestling. ...
The ground where citizens exercised. Men competed at wrestling, athletics, such as running and long jumping, ball games and swimming. Women worked out with weights. Also the exercise court in a bath house where the patrons could meet. 
exercise-yard of a public bath-house, in Britain sometimes covered
exercise yard