amplifier

noun

am·​pli·​fi·​er ˈam-plə-ˌfī(-ə)r How to pronounce amplifier (audio)
: 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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The amplifier that rests on top belonged to John Lennon. Josh Brolin, Billboard, 29 May 2025 The Fender Twin amplifier that the studio’s onetime owner Jimi Hendrix brought to work before his 1970 death remains, as does an electric piano Stevie Wonder used on an astounding run of records. Grayson Haver Currin Eli Durst, New York Times, 1 May 2025 His guitar lay on the bed, plugged in, the little amplifier on the floor humming faintly. Karl Ove Knausgaard, Harpers Magazine, 29 Apr. 2025 The new amplifier is aimed at users wanting to drive passive loudspeakers alongside a digital streamer. Mark Sparrow, Forbes, 18 Mar. 2025 See All Example Sentences for amplifier

Word History

Etymology

amplify + -er entry 2

First Known Use

1546, in the meaning defined above

Time Traveler
The first known use of amplifier was in 1546

Browse Nearby Words

Cite this Entry

“Amplifier.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/amplifier. Accessed 5 Jun. 2025.

Kids Definition

amplifier

noun
am·​pli·​fi·​er ˈam-plə-ˌfī(-ə)r How to pronounce amplifier (audio)
: 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 How to pronounce amplifier (audio)
: one that amplifies
specifically : an electronic device (as in a computer or sound-reproducing system) for amplifying voltage, current, or power

More from Merriam-Webster on amplifier

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