Crescendo

·noun A passage to be performed with constantly increasing volume of tone.

II. Crescendo ·noun A gradual increase in the strength and fullness of tone with which a passage is performed.

III. Crescendo ·adj & ·adv With a constantly increasing volume of voice; with gradually increasing strength and fullness of tone;

— a direction for the performance of music, indicated by the mark, or by writing the word on the score.