Four of a kind is a poker hand such as 9♣ 9♠ 9♦ 9♥ J♥, which contains four cards of one rank, and an unmatched card. It is also called "quads". It ranks above a full house and below a straight flush. There are 624 possible four of a kind hands, so the odds on quads given a five card hand are 4164:1. The poker room at the Trump Taj Mahal, Atlantic City, NJ. Poker is a card game, the most popular of a class of games called vying games, in which players with fully or partially concealed cards make wagers into a central pot, after which the pot is awarded to the... A hand in poker can mean any of the following: A unit of play consisting of a deal, one or more rounds of betting, and possibly a showdown. ... A full house is a poker hand such as 3♣ 3♠ 3♦ 6♣ 6♥, which contains three matching cards of one rank, plus two matching cards of another rank. ... A straight flush is a poker hand such as Q♠ J♠ 10♠ 9♠ 8♠, which contains five cards in sequence, all of the same suit. ... In probability theory and statistics the odds in favor of an event or a proposition are the quantity p / (1 − p), where p is the probability of the event or proposition. ...

Higher ranking quads defeat lower ranking ones. Between two equal sets of quads (possible in wild card and community card games), the kicker determines the winner. Poker games may contain one or more cards designated as wild. ... In poker, a card dealt face-up to the table (not to any one player) that is shared by more than one player is called a community card or shared card or widow card. ... A kicker, also called a side card, is a card in a poker hand that does not itself take part in determining the rank of the hand, but that may be used to break ties between hands of the same rank. ...

Examples:

• 10♣ 10♦ 10♥ 10♠ 5♦ ("four tens" or "quad tens") defeats 6♦ 6♥ 6♠ 6♣ K♠ ("four sixes")
• 10♣ 10♦ 10♥ 10♠ Q♣ ("four tens, queen kicker") defeats 10♣ 10♦ 10♥ 10♠ 5♦ ("four tens with a five")