Is “Nixer” a Scrabble word?
Yes
NIXER
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 Nixer
noun
1.A job or income which is taken in addition to one's normal employment, generally at evenings or weekends. Originally implied that payment was not declared for taxation, but now refers to any work that is not part of one's regular job.