IPA: /dɪˌmɪn.juˈɛndoʊ/
KK: /dɪˌmɪn.juˈɛn.doʊ/
A gradual decrease in loudness or intensity in music.
The piece ended with a beautiful diminuendo, leaving the audience in silence.
Diminuendo is formed from "diminuere" (meaning to lessen) and the suffix "-endo" (indicating a gerund or ongoing action). The word refers to the gradual decrease in volume or intensity in music.
Think of 'lessening' ('diminuere') as you imagine music gradually fading away — that's what diminuendo means.