Is danger a concrete or abstract noun?

The noun 'danger' is an abstract noun; a Word for the potential for injury, pain, harm, or loss; a Word for a concept.

A concrete noun is a Word for something that can be experienced by any of the five physical senses; something that can be seen, heard, smelled, tasted, or touched. We may see, hear, smell, taste, or touch something that may be dangerous, but danger is recognition or understanding the potential of that person or thing.