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# amplifier

«amplifier» in Mova's school dictionary: **A machine that makes sounds louder, especially from…** — its meaning for a pupil, its sense in the lessons and examples.

### part of speech

noun (an amplifier, amplifiers; informal an amp)

### meaning for a pupil

1) A machine that makes sounds louder, especially from guitars, microphones and music players. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/A/amplifier/#m1)

2) (science) Any device that makes an electric signal stronger. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/A/amplifier/#m2)

3) Something that makes a feeling or effect stronger. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/A/amplifier/#m3)

### sense in the lessons

In music and science lessons the amplifier shows how sound is turned into electric signals, made stronger and turned back into louder sound by a speaker. In bands, guitarists plug into an «amp». Phrases: «plug into the amplifier», «turn up the amp».

### examples

- The guitarist plugged into the amplifier. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/A/amplifier/#x1)
- Turn the amplifier down, it's too loud! [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/A/amplifier/#x2)
- A microphone, an amplifier and a speaker work together. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/A/amplifier/#x3)
- The school hall has a big amplifier for assemblies. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/A/amplifier/#x4)
- A hearing aid is a tiny amplifier. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/A/amplifier/#x5)
- Our band's amp crackled during the concert. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/A/amplifier/#x6)

### note

Short form: «amp» (informal; also «amp» means ampere, a unit of current). Verb: amplify (make louder or stronger). Spelling: -ifier, like «magnifier».

### Trees and pragmatics

[Every meaning and example of «amplifier» parsed by Mova](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/A/amplifier/), each sentence with its dependency tree and frames.