Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “amp”


noun [C] uk   /æmp/ us  

amp noun [C] (ELECTRICITY)

(formal ampere,   /ˈæm.peər/    /-pɪr/) the standard unit of measurement for the strength of an electrical current: a 30-amp fuseUnits of electrical power

amp noun [C] (SOUND)

informal an amplifierAmplifiers, microphones and speakers
(Definition of amp from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of amp?
Add Cambridge dictionaries to your browser to your website

More meanings of “amp”

Definitions of “amp” in other dictionaries

SMART Thesaurus: Electricity - units

“amp”: synonyms and related words:

You can also find related words, phrases, and synonyms in the topics:

Word of the Day


to throw or drop something carelessly

Word of the Day


Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More