The word "dangerous" means posing a threat or risk of causing harm, injury, damage or loss. It can refer to something that is likely to cause harm or injury, such as a hazardous situation or an unsafe condition. It can also refer to a person or thing that is capable of causing harm, such as a dangerous animal or an individual who is violent, unpredictable or reckless. In short, the word "dangerous" is used to describe something or someone that poses a risk of harm.