amplifier

noun

He used an amplifier to make his voice louder.

意味（1）

Anything that amplifies, or makes something larger or more intense.

意味（2）

(linguistics) An adverb that adds intensity, such as "really" or "totally".

意味（3）

意味（4）

(music) A portable encasement that houses a large speaker, used to amplify voices and musical instruments at live performances.

意味（5）

A lens that enlarges the field of vision.