Is “Moniker” a Scrabble word?
Yes
MONIKER
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 Moniker
noun
1.A personal name or nickname; an informal label, often drawing attention to a particular attribute.
“The rookie was upset at being called Lemon Drop until she realized that everyone on the team had a silly moniker.”
2.A signature.
3.An object (structured item of data) used to associate the name of an object with its location.
Synonyms: byname, nickname, pseudonym, sobriquet, street name, to-name