Other forms: amplified, amplifying, amplifies
To amplify is to make something louder or stronger. Amplify the signal, amplify their voices, amplifying the effect.
In electronics it is exact — an amplifier adds power to a signal without changing its shape, and any change it does add is distortion. Online, to amplify a message means to spread it further. Note that it also means to expand on a point, as in amplify that remark.
1verbamplifyTo make something louder or stronger.
“The microphone amplifies her voice so everyone in the hall can hear.”
amplify is a strengthening.
Middle English
amplifiyen
English, today
amplify
From Middle English amplifiyen. by surface analysis, ample + -ify.
Etymology from Wiktionary, CC BY-SA