battery
Definitions
A device that converts chemical energy into electricity to provide power for a device.
A group of similar items, such as artillery pieces, instruments, or questions, used together.
A criminal act of physical contact or violence against another person.
Examples
I need to buy a new battery for my laptop because the current one no longer holds a charge.
The toy car stopped moving suddenly when the battery ran out of power.
The police officer was charged with assault and battery after the incident at the station.