Parterre (theater audience)
The word parterre comes from the French par and terre and literally translated means "on the ground". The main meaning of the word is the front section of a formal garden, but by the mid-17th century, it was also used to refer both to the ground level of a theatre where spectators stood to watch performances and to the group of spectators who occupied that space.
Source: Wikipedia — Parterre (theater audience) (CC BY-SA 4.0)