Is “Borough” a Scrabble word?
Yes
BOROUGH
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 Borough
/ˈbʌɹə/
noun
1.A fortified town.
2.A town or city.
3.A town having a municipal corporation and certain traditional rights.