1) Border; fringe 2) City district 3) Fringe 1) Suburb 
• (n.) A part remote from the center; outer edge; border; -- usually in the plural; as, the outskirts of a town.
Out'skirt` noun A part remote from the center; outer edge; border; -- usually in the plural; as, the outskirts of a town. Wordsworth. « The outskirts of his march of mystery.» Keble. 
[n] - a part of the city far removed from the center
fringe noun a part of the city far removed from the center; `they built a factory on the outskirts of the city`
Often,the outlying district or region, as of a city, metropolitan area, or the like: to live on the outskirts of town; a sparsely populated outskirt. · Usually,the border or fringes of a specified quality, condition, or the like: the outskirts of respectability.