A stunner, in a general sense, refers to someone or something that is exceptionally impressive, attractive, or surprising. This term is often used to describe a person of remarkable beauty or charm that leaves a strong impression on others. Additionally, it can be applied to objects, events, or performances that are particularly striking or astonishing, evoking admiration or awe. A stunner stands out due to its extraordinary qualities, making it memorable and noteworthy in its context.