Is “Eff” a Scrabble word?
Yes
EFF
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 Eff
/ɛf/
verb
1.Fuck (the taboo swear word, but not in the sense "to copulate")
“And he kept saying, "Effing this, effing that."”
Synonyms: feck, frak, frig