amplifier

[ am-pluh-fahy-er ]

noun

1. a person or thing that amplifies or enlarges.
2. an electronic component or circuit for amplifying power, current, or voltage.

amplifier

/ ˈæmplɪˌfaɪə /

noun

1. an electronic device used to increase the strength of the signal fed into it
2. such a device used for the amplification of audio frequency signals in a radio, etc
3. photog an additional lens for altering the focal length of a camera lens
4. a person or thing that amplifies

amplifier

1. In electronics, a device that takes a small electric signal and converts it into a large one. Amplifiers are used in stereo systems, electric guitars, and loudspeakers.

Word History and Origins

Origin of amplifier¹

First recorded in 1540–50; amplify + -er ¹

Example Sentences

Tesla CEO Elon Musk is a prolific spreader and amplifier of misinformation on his social media platform X, formerly Twitter, a new report alleges.

From Salon

Bratton had been learning the trumpet when he got that electric Silvertone guitar, which had an amplifier in the case.

From Los Angeles Times

The campaign for her ouster started with far-right activist and journalist Christopher Rufo and found an amplifier online in users like hedge fund manager Bill Ackman before coming to a head after her controversial response to concerns of antisemitism on Harvard's campus during a congressional hearing.

From Salon

The guitar is paired here with a Soldano SLO-100 amplifier stack also used by Clapton at the Hall of Fame event.

From Los Angeles Times

"Many of our models suggest cloud cover will go down in the future and that means that clouds will reflect less sunlight back to space, more will be absorbed at the surface and that will act as an amplifier to the warming we would get from carbon dioxide," Dr Robin Hogan, from the European Centre for Medium-Range Weather Forecasts, told BBC News.

From BBC