1) It beats a full house 2) Poker holding 
A hand that contains four cards of one value such as four Queens is called four of a kind and is a top hand.
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.
In Poker four cards of the same denomination.In Poker four cards of the same denomination.
a set of four cards of the same denominations.
This meld format consists of four cards of the same rank but different suits – Aces (100 points), Kings (80 points), Queens (60 points), or Jacks (40 points). The four Tens and the four blanks in a game with a bigger deck are no valid meld.