Nuts

The best possible hand given the board. If the board is K♠-J ♦-T♠-4 ♠-2♥, then A ♠-X♠ is the nuts. You will occasionally hear the term applied to the best possible hand of a certain category, even though it isn't the overall nuts. For the above example, somebody with A♥-Q♣ might say they had the "nut straight."