Crescendo is a term in music meaning a passage which gradually increases in volume (it comes from an Italian word meaning 'to increase or grow'). Crescendo can also be used for any gradual increase in force or effect, leading up to a climax: a crescendo of excitement which culminated when the Queen appeared on the balcony. It is often used as though it meant the climax itself, in phrases such as rise to a crescendo, reach a crescendo, although many people consider this to be incorrect.