dual (adj)

The room had a dual function. It was a living room, but at night it was a bedroom.
The smartphone features a dual-camera system for capturing high-quality photos.
Her dual role as a teacher and a researcher requires a balance between academia and practical application.
The new car model comes with a dual exhaust system, enhancing its performance.
In his dual capacity as a musician and a producer, he seamlessly blends various genres in his compositions.