Can you do run in uno the card game?

In Uno, a "run" typically refers to a sequence of consecutive numbered cards of the same color, similar to a straight in other card games. However, the official rules of Uno do not recognize runs as a valid play; players can only match the top card of the discard pile by color or number. If you're playing with house rules, you might allow runs, but that would be outside the standard gameplay. Always clarify the rules with your group before starting a game!