Is “Rupture” a Scrabble word?
Yes
RUPTURE
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 Rupture
/ˈɹʌptʃə/
noun
1.A burst, split, or break.
2.A social breach or break, between individuals or groups.
3.A break or tear in soft tissue, such as a muscle.
verb
1.To burst, break through, or split, as under pressure.
2.To dehisce irregularly.