Is “Portmanteau” a Scrabble word?
Yes
PORTMANTEAU
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 Portmanteau
noun
1.A large travelling case usually made of leather, and opening into two equal sections.
2.A schoolbag.
3.A hook on which to hang clothing.