[1] : WordNet (r) 2.0

drive back
     v : force or drive back; "repel the attacker"; "fight off the
         onslaught"; "rebuff the attack" syn: repel, repulse,
          fight off, rebuff
see also:
repel repulse fight off rebuff 

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

39 moby thesaurus words for "drive back":
   beat back, beat off, block, brush off, chase, chase away,
   chase off, check, counter, cut, dismiss, drive away, fend,
   fend off, hinder, hold at bay, hold off, keep at bay, keep off,
   obstruct, pack off, parry, push back, put back, rebuff, refuse,
   repel, repulse, send away, send off, send packing, snub, spurn,
   stave off, stop, thrust back, turn aside, turn back, ward off

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