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Definition of amplifier

amplifier

/ˈæm.plɪ.faɪ.ər/
am · pli · fi · er
Plural:amplifiers
•
Adjective:amplificatory
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amplifier Lexical Profile

amplifier Game Scores & Validity

• noun

1

An electronic device or circuit that increases the power, voltage, or current of an electrical signal, commonly used in audio equipment to drive speakers.

Example

"She plugged her electric guitar into the amplifier before starting the soundcheck."

2

A person, system, or phenomenon that increases, enlarges, or intensifies the scale, impact, or significance of something.

Example

"Social media often acts as a powerful amplifier for both accurate information and damaging rumors."

Synonyms
View all synonyms for amplifier
Antonyms
View all antonyms for amplifier

• Rhymes for amplifier

• Nearby Words

ample
ampleness
amplification
amplifier
amplify
amplitude
amply

Word Origin & Etymology

Derived from the verb 'amplify' plus the agent suffix '-er'. 'Amplify' traces back to the Middle French 'amplifier', from Latin 'amplificare' (to enlarge), rooted in 'amplus' (large, broad).

Usage Trend

Historical frequency of usage in published text.

180019102020
Data source: Google Books Ngram Viewer

Cite this Entry

Wordmom. (2026). Definition of Amplifier. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/amplifier
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