1. An outlying part of a city or town; a smaller place immediately adjacent to a city; in the plural, the region which is on the confines of any city or large town; as, a house stands in the suburbs; a garden situated in the suburbs of Paris. “In the suburbs of a town.”
[London] could hardly have contained less than thirty or forty thousand souls within its walls; and the suburbs were very populous. --Hallam.
2. Hence, the confines; the outer part; the environment. “The suburbs . . . of sorrow.”
The suburb of their straw-built citadel. --Milton.
Suburb roister, a rowdy; a loafer. [Obs.] --Milton.