We couldn't find a direct definition for the term gr. br.
Maybe you were looking for one of these terms?
-grapher, garbure, geographer, geography fair, gerbera, gr. br., graaper, grab bar, grabar, grabber, graffer, grapery, graph paper, graver, gravere, gravery, gravier, graviera, gravir, gravura, gravure, gray friar, greffier, grey friar, grey power