# promoter

/pɹəˈmoʊtɝ/ (US) · /pɹəmˈəʊtɐ/ (UK)

Source: https://englishreference.com/word/promoter
Updated: 2026-06-20

## Senses

### 1. event organizer

noun · CEFR B2

a person or company that organizes and pays for an event, like a concert or a boxing match.

For teachers: an individual or organization that finances and organizes a sporting event or entertainment production.

- The concert promoter spent thousands of dollars on posters to sell out the show.
- The boxing promoter negotiated a lucrative television deal that ensured the match would be broadcast to a global audience.

Usage: Often used in the context of music, sports, or large-scale public entertainment.

### 2. supporter of an idea

noun · CEFR C1 · Formal

someone who actively supports or encourages a particular plan, idea, or cause.

For teachers: a person who advocates for or encourages the adoption of a specific cause, policy, or ideology.

- She has always been a strong promoter of healthy eating in local schools.
- As a leading promoter of renewable energy, the senator spent years lobbying for stricter carbon emission standards.

Teaching tip: In this sense, 'proponent' or 'advocate' is often preferred in academic writing.

### 3. DNA sequence

noun · CEFR C2 · Technical

a specific part of DNA that tells a cell to start making a certain protein.

For teachers: a region of DNA that initiates transcription of a particular gene by providing a binding site for RNA polymerase.

- The scientists studied the promoter to understand why the gene was turned off.
- Mutations within the promoter region can significantly alter the rate at which a gene is expressed within the organism.

Usage: Used as a countable noun in genetics and molecular biology.

### 4. chemical accelerator

noun · CEFR C2 · Technical

a substance that makes a catalyst work better, even though it is not a catalyst itself.

For teachers: a substance added to a catalyst to increase its activity or selectivity in a chemical reaction.

- Adding a small amount of the promoter made the chemical reaction happen much faster.
- The industrial process relies on a specific metallic promoter to enhance the efficiency of the catalytic converter.

## Examples

- The scientist added a promoter to speed up the chemical reaction.
- In the production of ammonia, small amounts of potassium are used as a promoter to enhance the iron catalyst's efficiency.
- The research team investigated how different alkali metal promoters affect the structural stability of the cobalt catalyst during long-term exposure to high-pressure carbon monoxide.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.