Charger (noun)

1. A device used to recharge batteries.
2. A device that provides electric power to a device, especially to one that operates on rechargeable batteries.
3. A horse that is used for riding or racing.
4. A plate or platter used to serve food.

Origin:

Late middle english, from charge + -er.

Examples:

1. He plugged his phone into the wall charger for the night.
2. The laptop charger was broken, so she had to buy a new one.
3. The charger was breathing heavily and sweating from the fast race.
4. The dinner table was set with plates, silverware, and a charger for each place setting.
5. The charger raced forward with a burst of speed and overtook the leaders.