promoter

noun

pro·​mot·​er prə-ˈmō-tər 

1

: one that promotes

especially : one who assumes the financial responsibilities of a sporting event (such as a boxing match) including contracting with the principals, renting the site, and collecting gate receipts

2

obsolete : prosecutor

3

: a substance that in very small amounts is able to increase the activity of a catalyst

4

: a binding site in a DNA chain at which RNA polymerase binds to initiate transcription of messenger RNA by one or more nearby structural genes

Synonyms of promoter

• proponent
• supporter
• advocate
• advocator
• exponent

Examples of promoter in a Sentence

a promoter of greater understanding and cooperation among churches

Recent Examples on the Web

All of the supporting characters are shrewdly cast and realized, whether Aiello’s nervous but persistent promoter or the superb Meredith’s weary, knowing cornerman. — Chris Jones, Chicago Tribune, 2 Nov. 2026

Some promoters outsource that work to specialized contractors like Accessibility Live. — Maribeth Romslo, Rolling Stone, 1 Nov. 2026

This wasn’t an unusual sight for the South Pasadena concert hall from bookers and promoters Sid the Cat. — Mikey O'Connell, HollywoodReporter, 30 Oct. 2026

On Wednesday in Los Angeles, promoter Oscar De La Hoya joined the criticism of the decision to hold the bout in Saudi Arabia. — Eduard Cauich, Los Angeles Times, 30 Oct. 2026

Word History

First Known Use

14th century, in the meaning defined at sense 1

Phrases Containing promoter

• co-promoter

Rhymes for promoter

• premotor
• promotor
• remoter
• boater
• coater
• floater
• motor
• rotor
• voter
• locomotor
• psychomotor
• servomotor

Kids Definition

promoter

noun

pro·​mot·​er prə-ˈmōt-ər 

: a person who promotes

especially : one who finances a sporting event

a promoter of prizefights

Medical Definition

promoter

noun

pro·​mot·​er -ˈmōt-ər 

1

: a substance that in very small amounts is able to increase the activity of a catalyst

2

: a binding site in a DNA chain at which RNA polymerase binds to initiate transcription of messenger RNA by one or more nearby structural genes

3

: a chemical believed to promote carcinogenicity or mutagenicity

Legal Definition

promoter

noun

pro·​mot·​er

: one who alone or with others actively participates in the formation of a business or venture

promoters owe a fiduciary duty to the corporation they are promoting

—R. C. Clark