The quality or state of being flaunt; the tendency to show off or display ostentatiously.
From 'flaunt' + '-y' + '-ness' (noun suffix). The suffix '-ness' converts the adjective into an abstract noun describing a characteristic or quality.
The '-ness' suffix is so powerful in English that we can attach it to almost any adjective to turn it into a measurable quality—'flauntiness' helps us discuss showing-off as a personality trait rather than just an action!
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