Is “Staunchest” a Scrabble word?
Yes
STAUNCHEST
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 Staunchest
adjective
1.Loyal, trustworthy, reliable.
“He's been a staunch supporter of mine through every election.”
2.Dependable, persistent.
“Without our staunch front line the enemy would have split the regiment.”