Is “Alto” a Scrabble word?
Yes
ALTO
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 Alto
/ˈæl.təʊ/
noun
1.A musical part or section higher than tenor and lower than soprano, formerly the part that performed a countermelody above the tenor or main melody.
2.A person or musical instrument that performs the alto part.
3.An alto saxophone
Synonyms: contratenor altus, high countertenor