Left Bank vs Rive Gauche

Left Bank and Rive Gauche both are nouns.

Word	Noun	Adjective	Verb	Adverb
Left Bank	Yes	No	No	No
Rive Gauche	Yes	No	No	No

As nouns, Left Bank and Rive Gauche are synonyms defined as:

Left Bank and Rive Gauche: the region of Paris on the southern bank of the Seine; a center of artistic and student life

Other synonyms of Left Bank include Latin Quarter.

Left Bank (noun)	Rive Gauche (noun)
the region of Paris on the southern bank of the Seine; a center of artistic and student life	the region of Paris on the southern bank of the Seine; a center of artistic and student life