What does it mean for an argument to be "sound"?

An argument is considered "sound" when it meets two specific criteria: it is valid, meaning that if the premises are true, the conclusion must also be true; and it has true premises. This distinction is important because a valid argument can still lead to a false conclusion if any of its premises are false. Therefore, soundness is a higher standard than mere validity, as it ensures that not only is the structure of the argument correct, but the content of the premises is also accurate. This makes sound arguments particularly strong and reliable forms of reasoning. Thus, the response which defines soundness as an argument being valid with true premises is completely accurate.