Hazard/ˈhæzərd/ Definition 1 of 4Pro Tip 1/3Visible vs Invisible Hazards can be physical, like a slippery floor, or not obvious, like harmful fumes. A gas leak presents an invisible hazard. Pro Tip 2/3Severity Varies A hazard might be minor or serious; context helps indicate its severity. Wet floors are a minor hazard compared to a fire. Pro Tip 3/3Prevention Focus Often used where prevention or caution is needed to avoid potential danger. Safety equipment reduces the hazard in the chemical plant.