n. 25B6; noun
the city's northern fringe : PERIMETER, periphery, border, borderline, margin, rim, outer edge, edge, extremity, limit; outer limits, limits, borders, bounds, outskirts, marches; poetic/literary marge, bourn.
blue curtains with a yellow fringe : EDGING, edge, border, trimming, frill, flounce, ruffle; tassels; archaic purfle.
middle.
25B6; adjective fringe theatre : UNCONVENTIONAL, unorthodox, alternative, avant-garde, experimental, innovative, left-field, innovatory, radical, extreme; peripheral; off Broadway; informal offbeat, way out.
mainstream.
25B6; verb
a robe of gold, fringed with black velvet : TRIM, edge, hem, border, bind, braid; decorate, adorn, ornament, embellish, finish; archaic purfle.
the lake is fringed by a belt of trees : BORDER, edge, bound, skirt, line, surround, enclose, encircle, circle, girdle, encompass, ring; poetic/literary gird.