1. 
   chukker
   chukka noun one of six playing periods into which a polo match is divided
   Found op http://wordnetweb.princeton.edu/perl/webwn?s=chukker
   
   
2. 
   chukker
   (from the article `polo`) ...to teammates, speed, and maneuvering, each team tries to score as the opponents try to prevent a score. A game consists of six periods of 7 12 ...
   Found op http://www.britannica.com/eb/a-z/c/83
   
   
3. 
   chukker
   1) Chukka 2) Period of play 3) Play 4) Playing period 5) Polo period
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/chukker/1
   
   

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