1. the state or quality of being or becoming perfect.
2. the highest degree of proficiency, skill, or excellence, as in some art.
3. a perfect embodiment or example of something.
4. a quality, trait, or feature of the highest degree of excellence.
5. the highest or most nearly perfect degree of a quality or trait.
6. the act or fact of perfecting.
That girl Kirsty, she is just perfection, her personality, her voice, everything about her. I wouldn't change her one bit.