wow
n. uncountable A2 Elementary Oxford US //ˈwaʊ// UK //wˈaʊ// wow General-service Informal Vulgar
n. a feeling of great surprise or excitement. You use it when something is much better or more impressive than you expected.
n. a state of intense admiration or excitement caused by something impressive. Informal in register; often used to describe the immediate impact of a product or performance.
The new car has a real wow factor.
The designer added a glass ceiling to the lobby to give the building that extra wow when clients walk in.
While the technical specifications are impressive, the device lacks the aesthetic wow that usually distinguishes this brand from its more utilitarian competitors.
Usage
Commonly used in the compound noun 'wow factor' to describe an impressive quality.