The word "renowner" refers to someone who is renowned or well-known for their accomplishments or skills. Synonyms for this term can vary depending on the context. One alternative is "celebrity", which implies a person who is famous and highly regarded in their field. Another option is "notable", which suggests someone who stands out due to their achievements or reputation. Additionally, "luminary" can be used to describe a person who possesses exceptional talent or intellect. Similarly, "figurehead" denotes an individual who is widely recognized and considered a leader or representative in their respective domain. Overall, these synonyms convey the idea of someone who is highly esteemed or recognized for their noteworthy contributions.