Which label signal word indicates more serious hazards?

The label signal word "Danger" indicates the most serious hazards among the options provided. It is used to communicate that there is a high level of risk associated with the substance or situation, requiring immediate attention and precautionary measures to prevent severe injuries or fatal incidents.

The use of "Danger" typically appears on products or substances that pose an immediate threat or represent an extreme hazard, which is why it is prioritized in safety communications. Understanding these signal words is crucial for ensuring safety in environments where hazardous materials are present, as they help convey the level of urgency and necessary responses to potential dangers.