Full explanation — The River
The River is the fifth and last community card dealt face-up, concluding the board. Following the river, there is one final betting round before the showdown, where players reveal their hands. At this point, there are no more 'outs' to improve; your hand is complete and fixed. Decisions on the river are often the most challenging, as they involve evaluating your opponent's range, pot odds, and the exact strength of your hand with all information available.