Nut flush

The best possible flush for a given situation. It must not be the nut hand overall. For example, if the board in hold'em is 5♥ 8♥ 3♠ 5♦ J♥ and you have A♥ 2♥, your ace-high flush is the nut flush but your opponent could hold 5♠ 8♠ for a full house.

See also straight flush and royal flush.