[1] : WordNet (r) 2.0

get the better of
     v : win a victory over; "you must overcome all difficulties";
         "defeat your enemies"; "he overcame his shyness"; "she
         conquered here fear of mice"; "he overcame his
         infirmity"; "her anger got the better of her and she blew
         up" syn: overcome, defeat
see also:
overcome defeat 

[2] : Moby Thesaurus II by Grady Ward, 1.0

61 moby thesaurus words for "get the better of":
   beat, beat all hollow, beat hollow, best, circumvent, deceive,
   defeat, destroy, do in, drub, elude, evade, fix, foil, frustrate,
   get around, get round, give the runaround, give the slip,
   go one better, hide, hors de combat, lambaste, lather, lick,
   outclass, outdo, outfight, outfigure, outflank, outgeneral,
   outguess, outmaneuver, outplay, outpoint, outreach, outrun,
   outsail, outshine, outsmart, outwit, overcome, overreach,
   pass the buck, prevail over, put, rise above, ruin, settle, skin,
   skin alive, stonewall, surmount, thrash, trim, triumph over,
   trounce, undo, victimize, whip, worst

Better >> B Words
Better, definition of term: Better
better_pag1.html

Better Off >> B Words
Better Off, definition of term: Better Off
better+off_pag1.html