affiliate
🇺🇸
/əˈfɪlieɪt/
🇬🇧
/əˈfɪlieɪt/
to connect a group or company with a larger one
The small business became an affiliate of the larger corporation.
to join or work with an organization
She decided to affiliate with the local community group.
a company or group connected to a larger one
The local store is an affiliate of the national chain.