1) French word used in English 2) Suburb 3) Suburban area 4) Suburbia 
Faubourg (pron) is an ancient French term approximating `suburb` (now generally termed banlieue). The earliest form is Forsbourg, derived from Latin foris, `out of`, and Vulgar Latin (originally Germanic) burgum, `town` or `fortress`. Traditionally, this name was given to an agglomeration forming around a throughway leading outwards from a...
• (n.) A suburb of French city; also, a district now within a city, but formerly without its walls.
Fau`bourg' (fō`bōr'; E. fō'bōrg) noun [ French] A suburb of a French city; also, a district now within a city, but formerly without its walls. 
[n] - a New Orleans district lying outside the original city limits
noun a New Orleans district lying outside the original city limits; used in combination with the names of various quarters of the city; `in Faubourg Sainte-Marie`