parquet circle vs parterre

parquet circle and parterre both are nouns.

Word	Noun	Adjective	Verb	Adverb
parquet circle	Yes	No	No	No
parterre	Yes	No	No	No

As nouns, parquet circle and parterre are synonyms defined as:

parquet circle and parterre: seating at the rear of the main floor (beneath the balconies)

parquet circle (noun)	parterre (noun)
seating at the rear of the main floor (beneath the balconies)	seating at the rear of the main floor (beneath the balconies)
	an ornamental flower garden; beds and paths are arranged to form a pattern