Secondary

The secondary market for used books is thriving.

The secondary battery in my phone needs to be replaced.

The secondary winding of the transformer is responsible for voltage conversion.

She bought a secondary car to use for commuting.

The secondary antibody helps detect the presence of the target protein.

He took on a secondary role in the school play.

The secondary source provided additional information for my research paper.

I volunteered to tutor math at the local secondary.

The secondary book in the series was just as exciting as the first.

The students were given a secondary assignment to reinforce their learning.

The secondary language he learned was Spanish.

They used the secondary road to avoid heavy traffic.

The secondary ingredient in the recipe gave the dish its unique flavor.