- 1(music) a gradual increase in how loudly a piece of music is played or sung opposite diminuendo
- 2a gradual increase in noise; the loudest point of a period of continuous noise synonym swell Voices rose in a crescendo and drowned him out. There was a tremendous crescendo of noise. The shrieks of laughter rose to a crescendo. (figurative) The advertising campaign reached a crescendo just before Christmas.
NAmE//krəˈʃɛndoʊ//(pl. crescendos) [countable, uncountable]