A brand ambassador is a person who is hired by a company to represent their brand and help promote their product or service. There are many different synonyms that can be used to describe this role, including spokesperson, brand advocate, influencer, promoter, ambassador-at-large, advocate, evangelist, and champion. Each of these terms conveys a similar idea, but with slightly different connotations. For example, a spokesperson might be more focused on speaking to the media or the public on behalf of the brand, while a promoter might be more involved in organizing events or marketing campaigns. Regardless of the specific term used, a brand ambassador is a crucial part of any successful marketing strategy.