Is “Crescendi” a Scrabble word?
Yes
CRESCENDI
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Crescendi
/kɹɛˈʃɛndi/
noun
1.An instruction to play gradually more loudly, denoted by a long, narrow angle with its apex on the left ( < ), by musicians called a hairpin.
2.A gradual increase of anything, especially to a dramatic climax.
“Their fighting rose in a fearsome crescendo.”
3.The climax of a gradual increase.
“Their arguing rose to a fearsome crescendo.”