Emily Dickinson Lexicon

SUB'URB, or SUB'URBS, n. [L. suburbium; sub and urbs, a city.]

1. A building without the walls of a city, but near them; or more generally, the parts that lie without the walls, but in the vicinity of a city. The word may signify buildings, streets or territory. We say, a house stands in the suburbs; a garden is situated in the suburbs of London or Paris.
2. The confines; the out part. The suburb of their straw-built citadel. – Milton.