Is “Sixty” a Scrabble word?
Yes
SIXTY
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 Sixty
/ˈsɪkstɪ/
numeral
1.The cardinal number occurring after fifty-nine and before sixty-one, represented in Roman numerals as LX and in Arabic numerals as 60.
Synonyms: 60, LX