renaissance can be used as a noun to refer to the period from roughly the 14th to the 17th century which was characterized by its renewed interest in arts, literature, and learning. It is used with either a capitalized or a lower-case 'r' depending on context. For example, when referring to the period, the word is typically capitalized to denote a specific era in history ('the Renaissance'); however, when describing a person who has experienced a sudden growth, it is typically lower-case ('the renaissance of an old building').
1. His knowledge of the Renaissance period was quite remarkable.
2. She received a doctorate degree in Renaissance art.
3. She is a Renaissance woman, excelling in many different fields.