OXFORD DICTIONARY
Brim, n. & v.
--n.
1 the edge or lip of a cup or other vessel, or of a hollow.
2 the projecting edge of a hat.
--v.tr. & intr. (brimmed, brimming) fill or be full to the brim.
brim over overflow.
brimless adj. brimmed adj. (usu. in comb.).
ME brimme, of unkn. orig.
THESAURUS
Brim
bank, board, border, bordure, brink, brow, coast, edge, featheredge, flange, frame, fringe, hem, labellum, labium, labrum, ledge, limb, limbus, lip, list, marge, margin, overflow, ragged edge, rim, selvage, shore, side, sideline, skirt, verge
ROGET THESAURUS
Brim
Edge
N
edge, verge, brink, brow, brim, margin, border, confine, skirt, rim, flange, side, mouth, jaws, chops, chaps, fauces, lip, muzzle, threshold, door, porch, portal, coast, shore, frame, fringe, flounce, frill, list, trimming, edging, skirting, hem, selvedge, welt, furbelow, valance, gimp, border, marginal, skirting, labial, labiated, marginated.