subsidiary

adjective
UK /səbˈsɪdiəri/
US /səbˈsɪdieri/

Something subsidiary is less important than the main thing.

The small shop is a subsidiary part of the big company.


OTHER MEANINGS

2. A company that is owned or controlled by a larger company.

The carmaker opened a subsidiary in Japan.

3. Serving to help or support something else.

She played a subsidiary role in the project.

4. A person or group that assists another.

The subsidiary helped the main team finish the work.