patron
benefactor / supporter
[C] Countable
pl: patrons
This word carries a strong sense of loyalty and relationship. When used in the context of arts or charity, it evokes a historical image of nobility sponsoring a genius, implying a power dynamic where the supporter enables the creator's existence.
In a commercial sense, it is more formal than customer. A customer is someone who makes a transaction, whereas a patron is someone who frequents a place, suggesting a habitual bond and a sense of belonging to a specific establishment.
A person who supports a cause or visits a business.