Is “Rebuff” a Scrabble word?
Yes
REBUFF
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 Rebuff
/ɹɪˈbʌf/
noun
1.A sudden resistance or refusal.
“He was surprised by her quick rebuff to his proposal.”
2.Repercussion, or beating back.
verb
1.To refuse; to offer sudden or harsh resistance; to turn down or shut out.