Is “Portmanteaux” a Scrabble word?
Yes
PORTMANTEAUX
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 Portmanteaux
/pɔɹtˈmæntoʊz/
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.
noun
1.A portmanteau word.
Synonyms: blend, frankenword, portmanteau word