Is “Seaway” a Scrabble word?
Yes
SEAWAY
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 Seaway
noun
1.A lane or route at sea that is regularly used by ships; a sea lane or trade route
2.An inland waterway used by seagoing shipping
3.The headway of a vessel