changer
🇺🇸
/ˈtʃeɪndʒər/
🇬🇧
/ˈtʃeɪndʒə(r)/
Someone or something that makes changes, often to make things better.
The new teacher was a real game changer for our class.
A machine that can hold and switch between several discs, like CDs or DVDs.
The changer in the car allowed us to switch between our favorite albums easily.