crescendo:1

noun
cre*scen*do \ krə-ˈshen-(ˌ)dō \
1775{ds||1|a|}
  • a gradual increase; specifically : a gradual increase in volume of a musical passage
  • the peak of a gradual increase : climax
  • a crescendo musical passage

crescendo:2

adverb or adjective
crescendo \
1807
  • with an increase in volume —used as a direction in music
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