1. 
   Four of a Kind
   A hand that contains four cards of one value such as four Queens is called four of a kind and is a top hand.
   Found op http://www.internet-poker.co.uk/Poker-Glossary/
   
   
2. 
   Four of a Kind
   In Poker four cards of the same denomination.
   Found op http://www.jackpot.co.uk/gambling-glossary.php
   
   
3. 
   Four of a Kind
   In Poker four cards of the same denomination.
   Found op http://www.jackpot.co.uk/gambling-glossary.php
   
   
4. 
   four-of-a-kind
   Exactly what i sounds like: For instance 2-2-2-2-7 is a four-of-a-kind hand. The only hand that beats four-of-a-king (or quads) is a straight flush.
   Found op http://www.cardschat.com/poker/guide/glossary
   
   

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