Is “Extensibility” a Scrabble word?
Yes
EXTENSIBILITY
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 Extensibility
noun
1.The capability of being extended
2.A quality of design that takes possible future advances into consideration and attempts to accommodate them