amplifier
noun
am·pli·fi·er
ˈam-plə-ˌfī(-ə)r 
: one that amplifies
specifically
: an electronic device (as in a stereo system) for amplifying voltage, current, or power
Examples of amplifier in a Sentence
He plugged his electric guitar into an amplifier.
Recent Examples on the Web
The substrate problem in GaN RF devices GaN is widely used in high-power RF amplifiers for telecommunications infrastructure, radars, and satellite communications because of its wide bandgap, high electron mobility, and breakdown voltage.
—
Aditya Jadhav, Interesting Engineering, 8 June 2026
The sound came mostly from the stage amplifiers.
—Air Mail, 30 May 2026
This single change—human thinking before AI input, not after—is the difference between using AI as a shortcut and using AI as an amplifier.
—Daria Rudnik, Forbes.com, 26 May 2026
The console, which is finished in natural walnut, also features a pair of two-way bass-reflex speakers powered by a 100-watt per channel Class D amplifier.
—Bryan Hood, Robb Report, 16 May 2026
See All Example Sentences for amplifier
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Aditya Jadhav, Interesting Engineering, 8 June 2026
The sound came mostly from the stage amplifiers.
—Air Mail, 30 May 2026
This single change—human thinking before AI input, not after—is the difference between using AI as a shortcut and using AI as an amplifier.
—Daria Rudnik, Forbes.com, 26 May 2026
The console, which is finished in natural walnut, also features a pair of two-way bass-reflex speakers powered by a 100-watt per channel Class D amplifier.
—Bryan Hood, Robb Report, 16 May 2026
See All Example Sentences for amplifier
Cite this Entry
“Amplifier.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/amplifier. Accessed 16 Jun. 2026.
Copy CitationKids Definition
amplifier
noun
am·pli·fi·er
ˈam-plə-ˌfī(-ə)r
: one that amplifies
especially
: a device usually using electron tubes or transistors to obtain an increase of voltage, current, or power
Medical Definition
amplifier
noun
am·pli·fi·er
ˈam-plə-ˌfī(ə)r
: one that amplifies
specifically
: an electronic device (as in a computer or sound-reproducing system) for amplifying voltage, current, or power
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