Amp (noun)

1. A unit of measurement of the strength of an electric current.
2. A device that increases the amplitude of an electrical signal.

Origin:

Abbreviation of ampere, the unit of electric current.

Examples:

1. The amplifier boosted the guitar's signal by several amps.
2. The current is measured in amps.
3. The speakers require at least 2 amps of power.
4. The amp was used to increase the volume of the audio signal.
5. He checked the amp reading before connecting the electrical device.