1. 
[syn: contest, contend, repugn]
The Collaborative International Dictionary of English v.0.48:
Repugn \Re*pugn"\ (r?-p?n"), v. t. [F. r['e]pugner, L.
   repugnare, repugnatum; pref. re- + pugnare to fight. See
   Pugnacious.]
   To fight against; to oppose; to resist. [R.]
   [1913 Webster]
         Stubbornly he did repugn the truth.      --Shak.
   [1913 Webster]
WordNet (r) 3.0 (2006):
repugn
    v 1: to make the subject of dispute, contention, or litigation;
         "They contested the outcome of the race" [syn: contest,
         contend, repugn]