Is “Oppo” a Scrabble word?
Yes
OPPO
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 Oppo
noun
1.A friend, associate or colleague.
2.Research into one's opponent's family, friends and past, which aims to uncover activities or interests which embarrass or discredit them (short for oppo research).