influencer

noun
UK /ˈɪnfluənsə/
US /ˈɪnfluənsər/

A person who is popular online and can make other people want to buy or try things.

The influencer shared a video of her new shoes, and thousands of fans bought them too.


OTHER MEANINGS

2. A person or thing that affects how something happens or develops.

Warm ocean water is a big influencer of hurricane strength.

3. Someone who quietly helps shape decisions in a group or company.

She was the real influencer behind the team's new plan.

4. A marketing term for a paid promoter who reaches an audience on social platforms.

The company hired a fitness influencer to advertise its protein bars.