amplifier

amplifier — noun

1. a piece of electrical equipment, often used with musical instruments or a stereo

1.名詞B2
釋義

a piece of electrical equipment, often used with musical instruments or a stereo, that takes a weak audio signal and boosts its power so the sound comes out of the speakers much louder.

例句

Bao plugged his electric guitar into the amplifier and started warming up.

plug [instrument] into the amplifier

The old valve amplifier in Grandpa's basement gave the music a warm, rich tone.

valve amplifier — common collocation

同義詞
  • amp

    informal short form, common among musicians

  • loudspeaker system

    broader — includes the speakers as well as the amplifier

  • PA system

    a complete public-address setup for speech or live music, larger than a single amplifier

文法句型

plug [instrument] into an amplifier

connect [device] to an amplifier

用法筆記

Often shortened to 'amp' in casual speech, especially among musicians (e.g. 'guitar amp'). The full form 'amplifier' is preferred in writing and in technical or retail contexts.

常見錯誤

❌I bought a new speaker amplifier to play my guitar' (when you mean the speaker itself).
✅I bought a new amplifier and a pair of speakers.
💡the amplifier boosts the signal; the speakers turn it into sound.
❌Please open the amplifier.
✅Please turn on the amplifier.
💡use 'turn on/off', not 'open/close', for electrical equipment in English.