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
Dressed all in black with his then-signature (pre-pandemic) mask, Bad Bunny stood atop the amplifier and brandished a Puerto Rican flag that included a light blue triangle, a version widely acknowledged as a pro-independence flag.
—
Julyssa Lopez, Rolling Stone, 26 Jan. 2026
With the telecoil system, an amplifier and copper wire (installed under the carpet or within the floor) transmit audio from the sound system via a magnetic field.
—Lisa Schencker, Chicago Tribune, 24 Jan. 2026
Mission has chosen to make a CD transport because the company’s 778X amplifier already contains a high-quality DAC.
—Mark Sparrow, Forbes.com, 22 Jan. 2026
At the same time, the chip’s architecture is enhanced by on-chip analogue parts, among which operational amplifiers and analogue-to-digital converters.
—Georgina Jedikovska, Interesting Engineering, 21 Jan. 2026
See All Example Sentences for amplifier
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Julyssa Lopez, Rolling Stone, 26 Jan. 2026
With the telecoil system, an amplifier and copper wire (installed under the carpet or within the floor) transmit audio from the sound system via a magnetic field.
—Lisa Schencker, Chicago Tribune, 24 Jan. 2026
Mission has chosen to make a CD transport because the company’s 778X amplifier already contains a high-quality DAC.
—Mark Sparrow, Forbes.com, 22 Jan. 2026
At the same time, the chip’s architecture is enhanced by on-chip analogue parts, among which operational amplifiers and analogue-to-digital converters.
—Georgina Jedikovska, Interesting Engineering, 21 Jan. 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 29 Jan. 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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