Is “Orca” a Scrabble word?
Yes
ORCA
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 Orca
noun
1.A sea mammal (Orcinus orca) related to dolphins and porpoises, commonly called the killer whale.
Synonyms: blackfish, grampus, killer whale