a sponsor who books and stages public entertainments
"The local promoter booked a famous jazz band to stage a festival in the town square."
One who promotes, particularly with respect to entertainment events or goods.
"The event promoter secured a famous musician to headline the summer festival."
In plain English: A promoter is someone who organizes and markets events to get people excited about them.
"The event promoter advertised the concert in every neighborhood to sell tickets."
Usage: A promoter organizes and markets specific events like concerts or product launches rather than managing an entire company's advertising strategy. Do not confuse this role with a "publicist," whose primary duty is generating media coverage instead of handling logistics and sales.
The word promoter is formed by adding the suffix "-er" to the verb promote. It refers simply to someone or something that promotes an event or product.