Is “Deathblow” a Scrabble word?
Yes
DEATHBLOW
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 Deathblow
/ˈdɛθbləʊ/
noun
1.A strike or blow that leads to death, especially a coup de grace.
2.Something that prevents the completion, or ends the existence, of a project etc.; a fatal setback.
“The opening of the bridge dealt a deathblow to the ferry.”
Synonyms: another nail in one's coffin