Double Suited
Double suited is an Omaha starting hand with two cards of one suit and two cards of another.
The simple explanation
In Omaha you receive four cards. A double suited hand has two cards of one suit and two of another, for example two hearts and two spades. That gives you two ways to make a flush. It is considered a strong feature of an Omaha hand.
A closer look
A double suited hand is more flexible than a hand with only one suit or none. With two suits you can make a flush on more boards, and the second suit helps when the first suit is counterfeited or blocked. In Omaha you must use exactly two of your own cards, so double suited hands with connected ranks are valuable. The feature adds value but does not rescue a poor hand.
A practical example
An Omaha player is dealt A♥ K♥ Q♠ J♠: two hearts and two spades. The hand is double suited.
Full explanation
Double suited is an Omaha starting hand with two cards of one suit and two cards of another.
A double suited hand in Omaha has its four hole cards divided into two suits, two cards in each. A hand like A♥ K♥ Q♠ J♠ is a double suited holding.
The advantage is the chance of making a flush in either suit. Because opponents also hold four cards, nut flush draws are valuable. With two suits, a board with three cards of either suit can give you a flush draw.
Suitedness is only one factor. Connected ranks and pairs matter as well. A double suited hand of poor ranks is still a weak hand.
In Omaha you must use exactly two hole cards, so each suit in a double suited hand needs both of its cards to make a flush.
Alternative spelling: double-suited