Is “Yapp” a Scrabble word?
Yes
YAPP
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 Yapp
/jæp/
noun
1.In bookbinding, the edge of the binding that extends beyond the edges of the pages, and may protect the gilding.