Definitions for "Open-ended straight"
A poker hand containing four consecutive ranks, needing another card to make a straight. For example, in a Texas Holdem poker game, a player may have 7-8 with a flop of 9-T-A. If the turn or river is 6 or J, the player will make the straight.
An straight draw is open-ended if it consists of four consecutive cards (none of them an ace). The straight can be completed at either end. See also double belly buster and inside straight.
Four cards to a straight in denomination sequence (5,6,7,8).