Is “Gnaws” a Scrabble word?
Yes
GNAWS
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 Gnaws
verb
1.To bite something persistently, especially something tough.
“The dog gnawed the bone until it broke in two.”
2.To produce excessive anxiety or worry.
“Her comment gnawed at me all day and I couldn't think about anything else.”
3.To corrode; to fret away; to waste.